I agree he likely won't be suspended, but there wasn't intent on Ovechkin's play either. And I think the injury to the head is kind of a weak criteria for the NHL to use. They claim it's not influenced by extent of the injury, but that's exactly what that is. Not to mention, you can't always tell if there's a head injury, unless the guy's knocked out cold. Hamhuis could wake up today with headaches and they'll find out he had a concussion.
He won't be suspended. There was no intent to injure on the play. He's not a repeat offender. There was no injury to the head (which is why it wasn't a game misconduct).
Both plays they reached out and shoved the guy as he was headed towards the boards. That's always a dangerous play.
It was an equally dangerous play to what AO did to Campbell, it just didn't have as bad of consequences. If Hamhuis falls differently, it could've been a concussion and broken collarbone, or worse. But he gets up and skates away, so Hossa's back on the ice to score the winning goal.