The perimeter of the Church is her sacraments. One must be baptised, do penance, and receive the Holy Eucharist to be saved. Those in non-sacramental communities of faith knowingly refuse the most important function of the Church; it is illogical for them to claim to belong to her.
Which is a gospel of works.
If so, then Jesus Christ and the Holy Spirit are in essence hijacked out of "the Church".. They are made to be ancillary to clergy and ceremony.. BUT imported by transubstantiation which is magic and superstition.. in the mysterious way all mystery religions operate..
The Holy Spirit is a real and vital entity.. More real than the Sun and the Moon since he made the Sun and the Moon.. The Holy Spirit does not need clergy or ceremony to operate.. or dogma.. clergy does.. and pagans do.. After all is God, God?.. You know, the real one.. there are many Gods but only one real one.. The pretenders(pagans) Need ceremony and clergy.. and outward displays.. The paraclete(Holy Spirit) can come by your(or my) side wherever we are to "help", comfort and instruct..
NOTE: Transubstantiation = making a metaphor literal(eat my flesh and drink my blood).. its like saying "its raining cats and dogs and then running to the window to see pets falling as precipitation..