The irony is if he had hit Lever he would have got weeks.The rules seem to be written around contact with an opposition player, not a team mate. However, he could possibly be reported under rule 22.2.2(ix); "Making unreasonable or unnecessary contact to the face of another person". Which he did in a very forceful way.
It seems to be one of the few "contact" rules which mentions "person" rather than "opposition player".
It is the accidental contact that is the problem here. Accidents happen and if you go down that path how do you separate the outcome based on teammate or not?
Need to get back to intent IMO.
AFL made their bed, will get messy.