and the coach says that he fell because of the lower body blow and the "push" wasn't a factor in his falling over. Every collision is different, did he extend his arm? sure. Does that mean he was trying to push a guy over? No. It could be that he was extending his hands to get balance or get the coach out of his way by putting his hands on the coach which looked like a shove because the coach fell over.
People will see what they want to see. His 'tripping" plays were dirty....the "shove" was NBD---especially when the opposing coach comes out and says it was a lower body impact and that it wasn't a dirty play. That's good enough for me.