some of stevens' hits were absolutely vicious and head hunting, and people didn't bat an eye because we didn't fully understand the full ramifications of those actions as well as we do now. he ended a couple careers with those hits, and he'd be suspended for nearly the entire season had he been playing in today's league the way he did back then.
this hit by jake, however, wasn't a headhunting hit, and he made contact with the head accidentally, as he's still a kid and learning. hell seasoned vets sometimes make the same mistake as he did (timing just a little off makes a clean play no longer clean).
I don't think the CHL cares about the principle point of contact not being the head, they only care that the head made contact in a significant manner.
when i saw the play live on tv, i didn't think much about it other than it was a big hit. but the alternate angles make it look a bit worse.