Last year, he was very excited during the mid-point of the season because he expected that, with the record number of callups from WBS, he had to be next (even though Pitt would have to give him an NHL contract - not that unusual midseason). It would have made sense considering he had a better year than Stone, Filewich, and maybe even Smith.
Near the end of the season, as those players returned, the excitement was gone. The reason he has signed back in WBS on one-year deals the last 2 years instead of going to Europe (he had offers) was that he wanted desperately to play an NHL game, even if it's just one.
You have to think, as he did, that the Islanders will be a better fit for that goal. If he wanted to win at the AHL level, WBS would be the place to be. If he wants to play for a horrible AHL team but have a better-than-average chance at that NHL game, he's made a good choice for himself.
Best of luck, Mac.