NFL rule changes

• A player in the act or just after throwing a pass.

• A receiver attempting to catch a pass or one who has not completed a catch and hasn’t had time to protect himself or hasn’t clearly become a runner. If the receiver/runner is capable of avoiding or warding off the impending contact of an opponent, he is no longer a defenseless player.

• A runner whose forward progress has been stopped and is already in the grasp of a tackler.

• A kickoff or punt returner attempting to field a kick in the air.

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• A player on the ground at the end of a play.

• A kicker/punter during the kick or return.

• A quarterback any time after a change of possession (i.e. turnover).

• A player who receives a “blindside” block when the blocker is moving toward his own end-line and approaches the opponent from behind or the side.

I'm all for player safety and maybe I'm missing something but a hit on a QB in the act of throwing the ball is illegal? Huh? What is the defense supposed to do then? Hitting/blocking a kicker/punter during a return or hitting/blocking a QB during a int or fumble recovery is illegal? Are they then not allowed to attempt ot make a tackle? Maybe i'm missing some fine print, I hope so because a few of these are a bit excessive IMHO.