If I remember correctly, practically zero "experts" in the media had the Jets pegged for the playoffs. I can't count how many (it was a ton) on this board had the Jets at 7-9, 8-8. Very, very few had the Jets winning 10+. I don't think anybody -- media or here -- had the Jets winning the division. Lose top defender and offensive playmaker. Starting a QB nobody was/is sold on. And now they are 4-7 with a pretty reasonable shot to finish 8-8, where pretty much most people thought.
I'd say the "disastrous" talk is definitely being overplayed.