Faith, appreciate the heart to illustrate that we have more in common than otherwise but there are a few errors with this nice piece. The Holy Orthodox Church claim Apostolic succession back to St Andrew for a reason, the first of the disciples and the only student of St John The Forerunner who links old and new covenants together and produces the continuity of Faith. He is the one that came to the others including his brother and said, come we have found Him.
It always amazes me how loosely the word petra is rendered.
As for your commentary on Papal infallibility I really don't know where to start, while apologetics may be offered on behalf of Latin Popes, articles of Faith that are not robust enough to defend Christendom morally or politically should philosophically be without use the word infallible.
I'm always reminded of the solid foundation of the Patristic tradition that solves more problems than it causes unlike the protestant experiment which evolved out of the Latin Church not the Greek Church who were always charismatic to begin with.