Well, see. Just because something doesn't suit you because it seems 'stupid', because it is used by 'nubs', doesn't mean it needs to be removed. They make the gameplay more balanced.
Sure, I have to agree with you that it is something's frustrating that you got hit with eggs or snowballs and then fall, but think of the moments where you hit that fully diamond dude of the bridge with 3 eggs. Those moments add on to the game.