Well yeah, but the title is kind of irrelevant. He was frustrated that he wasn't considered for promotional stuff like posters and cups and Cena was even though he's (in his eyes, although he's right) the best wrestler in the world and Cena isn't. Vince even outright said last night that Punk isn't worthy of being on promotional stuff.
Punk wants to beat Cena to prove that he's better than him, not necessarily to take his title. He obviously doesn't think having the belt makes you the best because he doesn't have it, Cena does. Having the title on the line is only really there to add to the drama since there is really nothing else of value that Punk can take with him. What else would he do? Show up in ROH and just say "I beat John Cena so I'm the best!" Every heel does that.
--
http://img31.imageshack.us/img31/670/ohbrett.png