I haven't played Roadhog since like szn 3 because I hated the fact he was a hook and carry the game. It was like you can easily be good at Roadhog and get to a high comp rank.
At first, after he got nerfed I was a bit sceptical and I didn't find him that good anymore. The buff of his healing ability made him a lot better again and since then he gets picked more often again. The only problem I see with him is that he can be an extreme ult feeder and he therefore isn't the best pick in every situation.