Destroydacre
Throws stuff out windows
Hitting a ball has nothing to do with it being mental. Having good hand eye coordination helps a lot more than anything.
How many quarterbacks can make a completion on every play while reading the defense with people rushing towards you?
Sure, but it also helps if you can anticipate what pitch your opponent is going to throw and where he tends to locate his pitches in certain counts. Players spend a lot of time watching video to find out pitcher's tendencies in certain counts and situations. It's no guarantee, but there is a mental aspect to it. Of course you're right as well that if you have no hand eye coordination, the pitcher could tell you what's coming and you still wouldn't be able to hit it.