Less than 1% of 300 million people will fill any stadium anywhere, so don't get tie up with American football hype.
Americans do not like football. Hence, their commentators have to keep selling their team when on the air. It's simply a push to prove why they should be on air in the first place.
That's why they talk about the team before the game, it's all hype for ratings. The general public is ignorant bout football but they appreciate world sporting dominance.
2 reasons I will be a hater of US football.
1. If your not respectful you won't be respected
2. If every time your team fails you throw them under a bus, there's something a work here beyond the love of the sport.