Who's to say that there's going to be a single 'ultimate interpreter' of the proof? If it's a community effort do we pull a Time Magazine and say everyone proved it... oh, and I guess Shin Mochizuki helped.

This whole article is just kind of silly. The fact that we don't understand it is a fact about ourselves, not about Mochizuki's reasoning. The argument is meaningful and correct or it isn't, and our perceptions of it are secondary to the thing itself.