Have you ever been to a major league game? The wave and beachballs don't distract from the game, they're just things to add some excitement.
I have had 41 game plan for the Nats since 2005 and in addition to those games I attend others so it's safe to say I've been around 130 games since 2005, so the answer is yes. But I go to watch baseball not to play beach ball or do the idiotic wave. I find enough excitement in the game itself, why would I need anything else to entertain me?