Looked to me like he was stumbling toward the qb hands out front of him looking for something to break his fall. Looked like he was trying to get into Position to shoulder tackle him but the play was over and he was falling and has nowhere to put his head. orobably the kind of play. similar to the area play around 2b in baseball where life was better before replay.
With the pussifaction of the rules now who knows!
Honestly, it sure looked like it to me. If it wasn't, it was certainly a late hit. Way worse than what you guys got called for at Utah.