I think I agree. After he looked really soft against Stipe, he came back looking just as soft vs Browne. Yeah, he beat Travis pretty easily but the fact he can't motivate himself to get into the shape he was vs Cain the first time tells me he might be in it for a paycheck now. He climbed the mountain, showed everyone he can be the best in the world, and just doesn't have it in him to put in that much work again.
But...he still does have a good chin (the Stipe KO not withstanding and obviously it's HW) and the threat of his bjj might keep Cain from trying to follow up with gnp if he were to drop him. There's enough here for me to like the Cain dec play I think.