We must be reading, not from completely different pages, but completely different books, from completely different worlds:
Over the course of time, the Catholic Church has been wont to revise and renew the laws of its sacred discipline so that, maintaining always fidelity to the Divine Founder, these laws may be truly in accord with the salvific mission entrusted to the Church. With this sole aim in view, we today, 25 January 1983, bring to fulfillment the anticipation of the whole Catholic world, and decree the publication of the revised Code of Canon Law. In doing so, our thoughts turn back to this same date in 1959, when our predecessor, John XXIII of happy memory, first publicly announced his personal decision to reform the current body of canonical laws which had been promulgated on the feast of Pentecost 1917.
This decision to renew the Code was taken with two others, of which that Pontiff spoke on the same day: they concerned his desire to hold a synod of the diocese of Rome and to convoke an Ecumenical Council. Even if the former does not have much bearing on the reform of the Code, the latter on the other hand, namely the Council, is of the greatest importance for our theme and is closely linked with its substance.
According to you, the Code was created and modified by those it protects (Do you means Bishops and priests?) and to "shore up" loopholes? Well, I did not get that from the Statement of Promulgation.