Good god what prompts someone to hit a guy like that? Plus who was that commentator? That's not a tough one...that's as clear cut as you can get for a suspension/targeting the head. Reckless and dangerous.
Z crouches some, then goes into an explosive upward motion just before contact, also making the main, and primary point of contact the head.
The problem is with Lundin, he's crouched low, so where are you going to try and hit him? Z doesn't leave his feet until after the hit. Furthermore it looks like Z turned and Lundin got hit with Z's back. What is Z suppose to do in that situation? He's committed to the hit and can't abandon it without doing more serious damage (see the Hall hit). It's not even a shoulder check. It's a full bodied check. It's an unfortunate hit but so was the Coyle hit. And that principal point of contact was Stajan's head.