Tyrann Mathieu's personal foul on the 2 pt conversion

If a punter outside the tackle box can be mauled while kicking the ball then so can a QB who's committed to the run then changed his mind.
This is a good point. I can't imagine anyone in a more dangerous position, not WRs, not QBs, not PKs, to get hit in an NFL game than a punter with one leg planted and the other one 120 degrees up in the air.