If there was no back-story here, I would be all over Carlos for allegedly choosing to wait. But there is.
Prior to the Diaz fight, we all recall how he was bounced around like a ping pong ball, and despite how frustrated he likely was because of it, he did his job, and took what Dana gave him after it all played out.
IMO, he's within his rights to say he's going to wait for the real champ.
And in reality, I think it's entirely likely that money will talk; if the right fight/offer comes along, he'll sign on to fight before Georgie comes back.