That fight was some time ago, and he has improved a lot since then, maybe more than anyone else has in the amount of time.
The fight was closer than most remember, generally one picture or gif is all people here is what people base that fight off, when you consider how undersized he was for that division it's quite remarkable he did as well as he did.
It seems like Dana is pushing for TJ vs Cody 2 at the moment , so we'll see what happens , if the fight is not made he will fight a contender and defend as a champion should.