I think Jaren Jackson would disagree. And I think he's a less risky pick than Ayton or Doncic. No questions about defense and he's got an obvious fit on offense with a lot of room to grow.
JJJ has all the physical tools and showed some serious defensive aptitude this season, but any team who takes him will literally have to teach him how to play offense. He's just incredibly raw with his footwork in the post and doesn't have the handle or face-up game like other "unicorns" similar to a KAT/Porzingis. He's not in the same stratosphere as Ayton on the glass either, and I'd put him a notch below Carter and Bamba as well. Has a long way to go as a passer too, but that's true of all the bigs outside of Carter.
I'd feel pretty good about a Serge Ibaka type of impact (granted, which is very, very good) as I think the shooting will translate and he's an incredible defensive prospect with a perfect physical profile for today's NBA. But I just have too many questions about how far he needs to go offensively to match where Doncic/Ayton/Bagley can be. That'll keep him a few notches lower on my big board, especially if considering him at 2.