Umpires are bad at their jobs, no question about that, but you don't think they hold grudges? Bautista in his prime was the biggest prick with umpires, I'm willing to bet they all knew that. Whether it changes the way they call a game is a different story, but trying to show how big their cocks are like police hiding behind a badge is pretty routine for them.
But yes, s***** at their jobs is an understatement. It's consistently bad.