I'm not sure what you watched. I saw a big that was often out of position on defense and airballed a three. Yeah, he had two dunks on nice feeds, but he wasn't scaring anyone. He has a loooooong way to go.
The main problem that I saw was that he was getting too far out while guarding and got blown by a couple times. Just needs to learn that it's going to be hard to shoot over a dude his size, even from a few feet away, and that players at this level are way faster than he's used to.