Listened to this carefully on the earphones just to make sure I wasn't hating on this without purpose.
The verdict is...it's complicated.
It does have some degree of niceness and smoothness to it, I mean it is a quality production. There's no denying that. I can't even say it lacks something anymore, because I don't feel it was necessary to add more things to this particular production without changing what it is. That said, musically it's completely uninteresting and really goes nowhere in particular. It's just one of those tracks that sound nice but you won't ever remember them.
I just don't like the fact that we're judging a TOTY based on how polished it sounds, rather than what emotions it provokes in a listener. Because what really does these days?