It's not even that he has a bad floater, he's pretty good at hitting them. It's just that it's a bad shot.
You hit a floater when there's 5 seconds left on the shot clock and you've been matched onto a bigger defender and that's the best shot you can manage in the time.
You do not hit a floater when 3 seconds ago you were wide open from 3 and you decided to just dribble into one because that would be fun.