I think people are underestimating how tough this game will be. I think the Jets will win but I could see a real dog fight. The Titans are 0-2 and are desperate for a win (0-3 is a death spell in the NFL). The Jets will also be hearing about how awesome they are all week. This game will be very competitive. As for Vegas, yeah, experienced gamblers follow trends. And a very talented 0-2 team that just lost two heart-breaking games in a row against a 2-0 team that will be reading about how great it is all week is a pretty decent bet to a lot of people.
