I could definitely see that happening, but not only for the reasons you mentioned. The game just isn't the same anymore.
Every fucking game, there's three 15 yard penalties for "unnecessary roughness" that would have been legal five years ago. You can't hit the quarterback except in a pre-defined area, and despite having a helmet on, if your hand slaps his head while you're pushed into him you get penalized. Every kickoff is a touchback. A play is over when a player loses a helmet. Fuck, even running backs aren't allowed to put their head down for extra yardage anymore.
Then there's the glorification of assholes. Wanna be a broadcaster when your career is over on the field? Be an asshole on the field. It worked for Warren Sapp, Michael Irvin, Deion Sanders, etc... and it sure as shit seems to be working for Richard Sherman, who's face is fucking everywhere in the world these days. That really moves the game forward.
And now we're supposed to get two more expansion teams in the next five years, so that we can distill the talent pool even further. Wonderful.
In the past four years, my interest in the NFL has gone from "rabid fan who follows every team" to "just keeping up with Giants news" to "passing interest in football." At some point it will probably become "guy who cares about football when he's at the bar and the game is on in front of him." They're really ruined their product.