“We declare, say, define and pronounce, that it is absolutely necessary for the salvation of every human creature to be subject to the Roman Pontiff.”
The nuancing of this into what the posted article says is complete nonsense. To say that Boniface VIII meant something other than what he said is nothing more than a futile attempt to maintain the fiction of the infallibility doctrine of Vatican I. I am sure the Latin Church wants to believe this. I am sure it wants the Orthodox to believe this. I don’t think we Orthodox should allow the Latin Church that fig leaf.
The way to deal with Unam Santam is to admit that Boniface VIII was simply wrong. The proclamation of dogma by Popes sua sponte has had precisely the sort of unforeseen consequences one would expect to flow from a heresy like the notion of papal infallibility.
P. do you think that Unam Sanctam could have come out of a true Ecumenical Council, even in 1302? You and I both know it wouldn’t have.