CM Punk not working for WWE

Much has been made of the fact that CM Punk is kinda, sorta back with WWE. But he’s actually under contract with Fox with no need to toe the WWE company line. Is it just me waiting for, and looking forward to, him to complain about some of the rotten booking when he appears on the Backstage show?
I'm PRETTY sure he's smart enough not to go on that show and complain about lousy booking.  Just a hunch.