It may sound dumb of me to ask, but, why would immeasurable speed only allow you to dodge after being hit? Also, if they're dodging something that's already hit them, thus making themselves "unhit", so to speak, then there wouldn't need to be any indication that they've been hit, since they've also dodged the same attack. You wouldn't need to convey them being hit by something they dodged, even if it's in a different time.
TL;DR: There'd be no need for the game to convey the characters getting hit by something if they can actually dodge that something regardless.