Seeing the Devils not make the playoffs for a second straight season is hard on people too, and that is going to manifest itself in many ways.
But Marty just seems to think he's entitled to play regardless of how good he is. The other guy was better than him. A lot better. One guy was 18th in save%, the other one is 43rd. What does Marty think...that PDB screwed him somehow? That the coach shouldn't try to go with the guy who's playing better? The ironic thing is, Marty seems to think he somehow should've gotten MORE playing time when he got way more than he ever really deserved. He says it was hard for him, and I'm sure it was simply because of what he once was and no longer is (or ever will be again). I can only imagine what it must have been like for Cory, who to his credit says all of the right things, but had to watch a guy get legacy starts at his expense, when he fully knows deep down inside he gives his team the better chance to win games.
At this point, Marty is a falling star trying to say anything to save face, whether it's for his own mental self preservation or for someone dumb enough to sign him this summer. I don't agree with what he says, but I also think he's not in his right mind when he's saying it. He's reeling because this wasn't how it was supposed to end. He was supposed to retire the triumphant hero, and now he's facing the reality of fading away.
If I can use one of SterioDesign's relationship analogies, it's like someone getting dumped who wasn't expecting it. They say a lot of things out of fear and jealousy. In Marty's mind, he would be just as good as he was if only he got another chance, and he doesn't realize Deboer gave him way more chances than he deserved this season. For some reason, he still thinks there's a couple of drops in the tank. These last 2 years sucked. I think he will be forgiven once some time has gone by, similar to the Niedermayer situation.