It's actually a pretty brilliant ploy to make up on the spot - no wonder Xehanort has a thousand and one contingency plans, maybe he inherited that from us
I loved that part, too. It was with the indirect help of MoM (the setup of everything), but I loved it when one single random child managed to lock up four (i originally I thought five, cus i thought there was really a darkness inside player) major - weaker, but stilm dangerous - threats to the world with just one trick. It was with self sacrifize, but the entire scene was gold for me, especially the part there Player started mocking them.
For the translation part:
It might be a job poorly done, but I can also imagine some timeline shenaningans. Had this thought since the whole "Be your heart your guiding key" stuff reached Sora through Yen Sid and them saying he did that before too... Can be just Nomura ignoring stuff, but I can also imagine someone is rewriting stuff in-universe.
Also for the post with the pictures about imagine sth. strong enough -> reality, it kinda reminded me about the concept of creation magic (ff14), but I guess even if the idea is similar, the one won't have to do with the other... although I wouldn't mind some Primals battles KH style.