Ah the what about isms, that completely miss the point of the criticism.
The issue with Bleach characters talking about their abilities is that there are SEVERAL instances where this directly leads to their defeat (where they could have won if only they kept their mouths shut). Specific examples include Shinji and Rose. It's not simply the act of explaining it that's dumb.
The issue with Fairy Tale fights is that (AKAIK as I've never read it) is EVERY MAJOR fight. Meanwhile he can only point to one major example of it in One Piece, while trying to manufacture another one while ignoring the fact Luffy trained between Kaido fights (and is AFAIK still LOSING the rematch atm, even with help)
Those are just the more egregious ones, everything he brings up in that sig is one shit tier what about ism after another.