They got the top-3 right. They definitely project to be the three best this season.
After that, it's rather inconsequential because for a lot of them, they're basically on the same level or thereabouts. While I don't completely agree with KD, Bron and Steph being that low, I understand it because they're coming to the end of their respective careers, whereas others who're ranked ahead of them are still right in their primes (or closing in on them).
To be honest, I think they're being rather generous to AD and Bron being that high considering the Lakers won't make any noise this season.