That was a) about player safety, and b) because the Saints were uncooperative and Sean Payton claimed ignorance and later the evidence showed that was almost impossible. I still think that suspension was harsh, but it's a world of difference from underinflated footballs. Come on.
Do the fans really care about the exact psi of a football, or is it because it's Belichick and the Patriots? When Aaron Rodgers mentioned like his balls overinflated (heh heh) during a broadcast, I had no reaction whatsoever. It's inconsequential. Do I care about all the little rules violations that happen during a season with every franchise? No, it's ludicrous.
But I've had the opinion that the morality play is really dumb for a long time. It's the NFL. Unless you want to discredit Oakland in the 70s, the Denver Broncos cheating the salary cap for their 2 Super Bowls, the 49ers doing the same in the late 90s, etc. etc. All the players who have used PEDs, all the teams that have covered up misdeeds by their players...all the convicts and suspected murderers that have received rings, the guys that try and stomp and injure each other...it's like really? We think this is a squeaky clean example of chivalry-based sport?
I root for the Patriots because I grew up in a specific area of the country and share that bond with a bunch of strangers. I think my team gets the shaft on these kinds of things because people hate our coach, our team, and us. At the end of the day, I don't think my team is morally superior to any other. I think we all live in glass houses on that end, but for the time being everyone's rocks are always pointed at Patriot Way.