After watching Miami for the last 3 weeks I'm feeling this. I was flying back to Dallas last night on Southwest and they have free Dish Network on the plane. I kept swapping between both MNF games and I was bored as hell. I know Miami is going to get slowed down as the season goes on. They aren't going to average 43 points a game by season's end. I don't think any teams would average 30. The NFL is a copycat league and I hope whatever Miami is doing is imitated to some degree. McDaniel's staff will be looked at (so will more from the Shanahan tree / SF). Fangio will probably get another shot as a HC since he had to scheme against it a lot. Fast players that go BRRRR will get graded higher for future drafts.
However, as of right now after watching Miami, most of the other teams just look slow and uninspiring on offense.
I guess the other problem is that maybe the league feels top heavy right now. If the team isn't SF, Buffalo, KC, Philly, Dallas, Miami, or Cincinatti I just don't think they'll get to the Super Bowl. All the other teams are just too flawed or lack the talent. It's a stretch to think they'll get hot at the end of the year manage to run a 3 game gauntlet of MIA/CIN/BUF/KC or SF/PHL/DAL. There might be a surprise team but I'm really not optimistic on that.