Cody has lost like once since WrestleMania and that was after an injury angle that forced a stoppage in the match. And he won the feud of that loss. He's heavily protected like Cena and Austin both used to be in which he doesn't know when to quit. He is their number one babyface and has gotten MORE popular since the Roman loss.
About Jey, not everyone who challenges for a world title needs to win it, you know...if they did, people would be here complaining about how meaningless the world titles are when everyone under the sun has won it. There is no way to win sometimes. Back to Jey specifically, say whatever you want about other specific people like Finn having been thrown aside for the Bloodline angle but you can't tell me with a straight face that Jey hasn't been HEAVILY elevated by it even without the ultimate win over Roman.
And no, you do not know what the word bury means.