Why hasn't American football embraced AR and radio tech?

TBC, I don't watch or care anything about the sport. I am curious why it hasn't gone to full military tech style communications between players and augmented heads up display style interfaces. It certainly isn't due to a lack of money. It is like the ultimate battle tech. What could possibly be more American than mock battles over an inflated pig carcass with military tech shit? Like drone view of every player, in helmet view, isolated coms, and off site real time strategy. Sounds about as potentially popular as a consul or first citizen hosting naval battles in a coliseum IMO.