This isn't hurting the NFL today, and that's they aren't freaking out over it. If it lasts, they they start to panic.
I knew it was skating on thin ice over other issues. Injuries to star players. Suspensions to star players. Blown calls that cost the game. Last: Going for the big hit instead of the tackle. Going for the interception on a long pass on 4th down. Heads are not in the game.