That's a bit of a catch-22, isn't it? "Wow, you hate our company. I'm glad we made you hate us so we could find out." Note: an unnecessary undesirable job.

Not to mention he's not screwing a company, he's leaving a contract under established terms after discovering an incompatibility. When you screw up and get fired, you don't really get to say "I'm glad I screwed up before you had the chance to fire me."