Yea, that "a weight is finally lifted from me!" comment definitely brings to mind that he wasn't too happy there or maybe he just really wanted to go indie. All the cool kids are doing it
It's funny, I read about the horrors of being a developer or working for a developer and having a stable job that you can rely on to pay the bills. Then he makes a comment like that. I wonder if he already has another job lined up because some people would kill to have his job for how long he had it for.