You all act like just because people sign a treaty/etc.. that it actually matters.. sheesh, history is wrought with broken political agreements/religious agreements. The truth is, florence happened and the RC still aren't in communion with the Eastern Orthodox. So what if the patriarch did/didn't sign it or everyone else signed it, it doesn't matter, it didn't happen (the outcome of the so called council) anyway.
The significant question is whether the compromise happened to such an extent that Apostolic continuity was interrupted in the EOC and thus proven that it was not the Church of Christ in the first place.
Of course not. Not all the bishops of the Orthodox Church capitulated, only some that went to Florence, and most of these recanted and returned to Orthodoxy. No interruption. Also, the other patriarchates anathematized the false council.