Football need to do something to adapt. There will be more rules like this moving forward to try to "fix" the game.
Numbers are dwindling at the youth level. I was talking to a guy on the board of my local youth football association. He said the number of kids playing are about 2/3 of what it was 5 years ago, and continues to drop. The way they have been operating in the past was flag football in 2nd/3rd grades, the tackle in 4th-6th. He is 90% sure this coming year they will be eliminating tackle for 4th graders and switching to flag (trying to keep number up, because there is a severe drop in participation once it becomes tackle). And he said he wouldn't be surprised to see tackle completely gone (all moved to flag or 7 on 7) at the grade school level in the next couple years.