The West did some gyrations that the East didn’t, and vice versa. But the Reformation influenced the Latins in a way that didn’t influence the East very much, which culminated in the disastrous outcome of Vatican II in some ways.
BXVI, building upon JPII’s heroic turning of the massive ship, is bringing us back into orthodoxy in those ways that we have strayed. There is no great theological difference, the difference is mostly cultural. But the restoration of the Tridentine Mass and the position of the celebrant is tremendously important from a laic point of view. Now, we have to restore the communion rail, the practice of using a paten during communion, and the design and utility of our churches.
Well, that's the first time I've seen the Reformation blamed for Vatican II.