The Compilation is irrelevant tbf, I'm talking about Uematsu's post-IX work anywhere. I wouldn't put it past him to Black Mage-ify almost every battle track in FFVII, and I don't want that to happen.
I can't recall any Uematsu soundtrack to be particularly heavy on the metal (
) and eitherway, that would be no indication that he'd radically change the style of his VII soundtrack. One thing is a new style for a new OST for a new title, the other is remaking music for which the tone has already been established.
Anyway, I agree that he isn't needed for the actual work of arranging the music as he doesn't do complex arrangements or orchestrations anyway. (Also on that subject, he didn't do the arrangements for The Black Mages either).
But I'd still say it would've been nice for him to supervise it, like Shimomura did for KH HD.
That said, Square Enix has no shortage of other composers and arrangers that I'm sure can do a good job.