Your argument falls apart here, since you can review food without being able to cook said food. For example, you don't need to know how to cook to know that something is burnt and therefore critique it based on that.

What you're really arguing here that Elon Musk is more capable than the previous people in charge of Twitter. I won't defend them much, but based on many of his previous actions I'm skeptical he's going to do any better and in fact think he'll probably do worse than the ex-leadership.