Part of me thinks its a work. I mean, the last Summer of Punk, he managed to stay until his contract is up before he said he was done. He's rumored to be involved in a high profile Mania match with HHH. He could have just easily waited till that is over, cash in and leave.
Also, what better way to hate the biggest heel in the company than making an angle that looks like a management blunder. The IWC is riled up. But chances are they'll be tuning in every Monday night as they find a clearer explanation of the situation. If this is a work, it is absolutely brilliant.
But if its real, I can't blame him. I mean you work hard, your friends too, so you can be that headliner in the biggest show of the year. Only the get pushed aside to give way for part timers. I think the Rumble crowd reaction to Batista winning just made it easier for Punk to leave.
Work or shoot, this is very interesting.