The kid doesn't have the build to become an NBA player that can body up anyone. He will have to rely on his ability to shoot, and extend his basketball skills, not so much his height.
Durant became awesome because he is an amazing shooter and excellent ball handler, at any size. The height allows him to get his shot off on anyone, but Durant doesn't ever bully anyone down low, no matter what the size.
This kid is a bigger version of the same thing. He does show excellent ball handling and he can shoot. The question is just how elite in an NBA sense he will get at those things. His height is jaw dropping but because he will never have physicality, it only means what it means to Durant: he can almost always get his shot off. I'm not so sure the extra 4-5 inches actually helps any.
It also was interesting that Henderson was able to take it right at him and finish. He's going to have to get a bit quicker if he's going to be a force at an NBA level.