@Diggler67 I'd have preferred it's a bright line rule. You hit him in the head, whether or not you mean to, you're flagged. If I were to make an exception, it wouldn't be for glancing contact, but for if the QB ducks.
Here I don't even think it was that light of a hit - Maier's head got snapped almost ninety degrees left from the contact, and rotation is thought to be a bigger risk than linear motion.
@Diggler67 during the preseason there was a call - I can't remember which game, unfortunately - where the call on the field was RTP for a low hit, and it was challenged and upheld. That was an error, in my opinion, because on the play in question, the quarterback had been flushed from the pocket. At that point he's legally a runner, not a passer - and you can't have roughing the passer without a passer! It's perfectly okay to make a shoestring tackle on a runner, even if he is the quarterback. It's RTP, not RTQB.
