And thats the point, Walker as learnt from the earlier tackle on Harry Taylor and no injury resulted. Give me two examples where the AFL has suspended a player for potential harm and not where an injury occurred?
All of those front on bumps where a player has his head over the ball and the tackler uses his hip to bump them. There have been plenty of these that haven't resulted in concussion or any other type of injury, yet players have received lengthy bans due to the potential for serious injury, especially to the neck. I would equate this tackle with these types of tackles.