Would you take away Charles Woodson's Heisman because he clearly punched another player, David Boston, on the helmet.
^See? He punched him.
Its a physical sport. People run as fast as the can into each other. Players hate each other. There is pride involved and so if two players are battling it out and happen to take a few shots at each other then so be it.
That's called football. If it gets too rough for you then stop watching.