Let's not give the NFL too much credit. These guys don't care about the players. Be realistic here.
In my opinion [CONSPIRACY THEORY ALERT] the NFL is trying to do anything it can to eliminate injuries because it's throwing their advertising marketing out of whack. The injuries make the game length unpredictable which is a monetary concern. At the end of the day, the NFL likes to know exactly what it has so they can sell the advertising appropriately. When there are game interruptions and injuries it makes the product unappealing to the fan and the corporations but it also is a huge loss of money as well. And before you ask, no I really don't believe any of this sh!t I just typed. This is really all about the lawsuits they are facing that could cost them billions of dollars in medical bills and quality of life settlements.