Mark Cuban called this back in 2014. Described how the NFL is oversaturating us with a good product while they expanded primetime games. A lot of the higher ups laughed at this cause they felt he was just jealous the NBA wasn't as much of a juggernaut.
"Just watch,” Cuban said in a March 2014 conversation with reporters. “Pigs get fat, hogs get slaughtered. When you try to take it too far, people turn the other way. I’m just telling you, when you’ve got a good thing and you get greedy, it always, always, always, always, always turns on you. That’s rule No. 1 of business."
Thursday night games almost always are blow outs, generally with bad teams, due to shorter weeks to prepare/rest. This obsession with getting the NFL popular in London (with bottom dwellers) and having early morning games doesn't help. I think I've tuned into one of these and it was just because yahoo was streaming it for free when I went to update my fantasy team.
Awful refs, long reviews, and ever increasing commercials also plague the game. Flag happy, no contact games are unbearable.
There are also about 4 consistently good teams while everyone else gets lumped together in varying levels of 'average to bad.' Parity isn't a good thing if it's only with the bottom 2/3 of the league. NFC East, AFC South, NFC South have all been generally a grab bag of who will be lucky enough to win 9 games. No other team has sniffed the AFC East lead in a decade.