Maybe someone can correct me, but I'm pretty sure it's not that he doesn't like it, he might have said it like that but I've seen in interviews where he has explained that it is just such a tough song, because you have to nail it, it's his big song and some nights he hits it, others he doesn't. It's also the song he sings in the shower
because of the above points I mentioned, he answered that in one of his YouTube Q&A's.