The platforms themselves as sources, obviously not. But plenty of the creators on them are scholars or academics, it depends on how and where you look!

There are a ton of subjects that are quite toxic in the wrong hands. I’d rather find out about a biography of General Lee, say, from an AP reviewer. You’re asking people to do a lot of research into finding reviews for newly published books.

What if the youtuber used to work at AP?

I’m not asking people to do anything besides seek more literature however they can. Unfortunately, for many outside academia, that is video book reviews