It all comes back to money. That's the only thing that matters to the major networks. Sadly, ESPN has followed the masses in the past decade.
For whatever reason, talking about the Jets, no matter how good or bad, generates controversy. Controversy attracts ratings. Ratings attract expensive ad space.
It's pretty simple and an easy reason why I avoid the major outlets when it comes to sports discussion. There are so many intelligent minds on the Internet who post on twitter and have blogs. I've learned more about football in the last two years then I did in the rest of my life combined.