MB-
There is the confirmation of what Soloviev said. Unfortunately, it flies in the face of reason. As Frank Sheed pointed out,
[The Catholic Church] not only repeated what the apostles had been taught: she thought about it, meditated on it, prayed by it, lived it. And, doing all this, the Church came to see further and further depths of truth in it. And, seeing these, she taught these too. Everything was contained in what Christ had given the apostles to give the Church: but though everything was there, it was not all seen explicitly–not all at once.
Since the Orthodox were members of the Catholic Church (that name having first been recorded by Ignatius of Antioch), it stands to reason that ALL Catholics (including those who now choose to go by another name) would have been perfectly content with Sheed’s description prior to 1054 (or whatever date you prefer).
However, in order to avoid the obvious implications of doctrinal development of the papacy, the modern day EO are forced to draw an arbitrary line in the sand and say, “We will go this far and no farther.”
Can you imagine this principle at work in the early Church? An early Christian might have argued, "No, I cannot accept (the canon, the hypostasis, the theotokos, the trinity, etc.) because THAT did not come directly from Peter, Paul, Polycarp, Clement, Ignatius, Polycarp, or Irenaeus. Really? The idea is absurd - or should I say, “adolescent”.
The Church spent a LOT of time considering the revelation delivered once for all to the Apostles, etc., and they - what’s that? - they DEVELOPED their understanding of that revelation as needed. The papacy is no different. It has developed as the need for understanding has arisen. The papacy is different because the world is different.
But let’s be clear: some put their fingers into their ears saying, “Lalalalalalalalalal…I’m not listening…lalalalalalala” because the ecclesiological implications of this are profound.