What is the injury rate on PAT's? That has to be pretty insignificant too.
I'd argue that we take it out because its not really a competitive part of the game, its a waste of time really. Taking it out because someone might get hurt is stupid. If we were really concerned about health, then no one would play football... or box... or participate in any contact sport.
But we are not really concerned with health are we? No, its all a charade to make the NFL look like it cares about player safety.
Don't get caught up in it.