I doubt anyone disputes it is all about money. Most things are. What I am saying is for the league to make money the game has to be viable as a competitive sport too. And if defenders are not allowed to defend freely, what is the point of giving big contracts to defensive players? If you are an owner, are you giving out $100 million to defenders who you know will have 2 hands tied behind his back? They will become impotent as far as stopping the offence. Then the sport is no longer watchable. Now that is a long way off still. But the league needs to be careful about how far it goes.
And if I'm playing QB, I make sure my head hits the ground after every hit. 1st down every time. EVERY time. They have to make it reviewable.