As long as guys are still allowed to run behind their pads and lower their shoulders to make hits i'm ok. Yes the head comes down when the pads come down but if the runner or tackler is not initiating contact with the head, there should not be a penalty.
The lowering of the head is still a gigantic issue at the most basic level of football. peewees and pop warner, I still see 10yard apart straight up hits on instagram being celebrated, it's a stupid drill and it should not be encouraged. Same with coaches yelling that players need to get their head across the body when making a tackle. Just make the tackle don't worry about head placement, take the head out of the game. i coached peewees, and on angle tackles, we concentrated on getting a players belly button on the runner, forget the head, get them to tackle with the HIPS, and shoulder pads. head in front, head behind no matter hit and wrap up and drive through. But it's still being taught incorrectly from the get go.