Again thank you so much for this explanation. I greatly appreciate it. As a longtime whiner re- FR Catholics being unable to answer my questions about the pope's behavior, I am sincerely grateful to you for the time you took to post this.
Now, as to your question ...
So what I am getting from this is that the RC church admits there can be some truth in the inspired writings of other faiths and that made it ok for the pope to kiss the Koran.
From Redmptoris Missio:
55. Inter-religious dialogue is a part of the Church's evangelizing mission. Understood as a method and means of mutual knowledge and enrichment, dialogue is not in opposition to the mission ad gentes; indeed, it has special links with that mission and is one of its expressions . This mission, in fact, is addressed to those who do not know Christ and his Gospel, and who belong for the most part to other religions. In Christ, God calls all peoples to himself and he wishes to share with them the fullness of his revelation and love. He does not fail to make himself present in many ways, not only to individuals but also to entire peoples through their spiritual riches, of which their religions are the main and essential expression, even when they contain "gaps, insufficiencies and errors."(98) All of this has been given ample emphasis by the Council and the subsequent Magisterium, without detracting in any way from the fact that salvation comes from Christ and that dialogue does not dispense from evangelization.(99)
In the light of the economy of salvation, the Church sees no conflict between proclaiming Christ and engaging in interreligious dialogue. Instead, she feels the need to link the two in the context of her mission ad gentes . These two elements must maintain both their intimate connection and their distinctiveness ; therefore they should not be confused, manipulated or regarded as identical, as though they were interchangeable
CDFs Dominus Iesus: See CDF document here
4. The Church's constant missionary proclamation is endangered today by relativistic theories which seek to justify religious pluralism, not only de facto but also de iure (or in principle). As a consequence, it is held that certain truths have been superseded; for example, the definitive and complete character of the revelation of Jesus Christ, the nature of Christian faith as compared with that of belief in other religions, the inspired nature of the books of Sacred Scripture, the personal unity between the Eternal Word and Jesus of Nazareth, the unity of the economy of the Incarnate Word and the Holy Spirit, the unicity and salvific universality of the mystery of Jesus Christ, the universal salvific mediation of the Church, the inseparability while recognizing the distinction of the kingdom of God, the kingdom of Christ, and the Church, and the subsistence of the one Church of Christ in the Catholic Church.
6. Therefore, the theory of the limited, incomplete, or imperfect character of the revelation of Jesus Christ, which would be complementary to that found in other religions, is contrary to the Church's faith. Such a position would claim to be based on the notion that the truth about God cannot be grasped and manifested in its globality and completeness by any historical religion, neither by Christianity nor by Jesus Christ.
7. ...Thus, theological faith (the acceptance of the truth revealed by the One and Triune God) is often identified with belief in other religions, which is religious experience still in search of the absolute truth and still lacking assent to God who reveals himself. This is one of the reasons why the differences between Christianity and the other religions tend to be reduced at times to the point of disappearance.
Most critical to our concern:
8. The hypothesis of the inspired value of the sacred writings of other religions is also put forward. Certainly, it must be recognized that there are some elements in these texts which may be de facto instruments by which countless people throughout the centuries have been and still are able today to nourish and maintain their life-relationship with God. Thus, as noted above, the Second Vatican Council, in considering the customs, precepts, and teachings of the other religions, teaches that although differing in many ways from her own teaching, these nevertheless often reflect a ray of that truth which enlightens all men.23
The Church's tradition, however, reserves the designation of inspired texts to the canonical books of the Old and New Testaments, since these are inspired by the Holy Spirit.24 Taking up this tradition, the Dogmatic Constitution on Divine Revelation of the Second Vatican Council states: For Holy Mother Church, relying on the faith of the apostolic age, accepts as sacred and canonical the books of the Old and New Testaments, whole and entire, with all their parts, on the grounds that, written under the inspiration of the Holy Spirit (cf. Jn 20:31; 2 Tim 3:16; 2 Pet 1:19-21; 3:15-16), they have God as their author, and have been handed on as such to the Church herself.25 These books firmly, faithfully, and without error, teach that truth which God, for the sake of our salvation, wished to see confided to the Sacred Scriptures.26
Nevertheless, God, who desires to call all peoples to himself in Christ and to communicate to them the fullness of his revelation and love, does not fail to make himself present in many ways, not only to individuals, but also to entire peoples through their spiritual riches, of which their religions are the main and essential expression even when they contain gaps, insufficiencies and errors'.27 Therefore, the sacred books of other religions, which in actual fact direct and nourish the existence of their followers, receive from the mystery of Christ the elements of goodness and grace which they contain.
It is very clear, then, that neither the Pope nor Vatican II promotes doctrinal relativism, much less syncretism. This is why the neo-modernists consider the Pope a veritable inquisition. They can read. Yet the joyless Integrist can be counted on to always put the worst possible construction on any event or text (even if they usually prefer to simply ignore than compare texts). Thus they alleviate some of their anxiety for airtight security, even if it means fleeing from the vulnerability and suffering of the cross in our time. The Integrist is never so gleeful as when in [the diversion of] debate. Those of us who have known them intimately consider this one of their most striking and constant characteristics. To debate them is to feed their pride. Better to sincerely pray for them often. It is tragic beyond words when truth itself is inconsequential to the act of debating.
The Church, then, rejects nothing which is good, true or holy in other religions, but condemns all syncretistic theology as it did with Frs. Anthony de Mello's and Tissa Balasuriya's writings; see also the CDF's warnings to the bishops of India regarding syncretism and erroneous christologies; also its warnings about eastern meditation, etc.