I can see taking the 3 day hit - suspension from school.
BUT i wouldn't remove him from any sports team. Even if they call it an error in judgment, that can impact college, etc. And do they kick kids off the chess team if they're caught smoking, etc? This kid over-reacted, yes, suspension. But football is pretty big, kids do it for 5-7 years before they even reach high school sometimes. Can't take that away for one over-reaction when a blind kid is getting pummelled.