The comparison you're offering is at the far opposite end of learning. That's a can of worms comparing high-end coaches to each other.I apologize if I appear that I was arguing. I am not trying to argue just merely stating an opinion.
I personally do not do wrist snaps. When I think about whether I want to incorporate a drill or not, I usually think through this. Can I find any high-level coaches or high-level athletes who do the drill? With wrist snaps, I have not been able to find any high-level throwers who incorporate them into their practice, nor any higher level throwing coaches. I have never seen a professional baseball player do them.