I would like to point out that most of these guys are in it to make an extra buck. Obviously, one could not support a family with the income from refereeing on weekends, so they have a day job as well. I really don't think we should expect these guys to watch film of themselves, sounds pretty ridiculous to ask them to do that.
Calls never win or lose matches, I've been on both sides of the issue, and the wrestler could have always won the match at another juncture. It's part of the game that will never go away, no matter what sport. There are always the fat/old/lazy/slow refs who everyone will just have to deal with.