If I was PHI, I would take Ace at 3. But if we're looking at it from a Jazz perspective, I might just fade him. Environment is always important, but I think it's especially important for Ace. With PHI, he will be forced to take a step back. It could make him sink or swim, but this is probably the best likelihood of developing the right habits and realizing his potential. He doesn't need freedom and opportunity, he needs to be put in a box for a bit. PHI just better hope it ends up like Tatum/Brown and not like Kuminga.
I don't like Ace on this Jazz team. The tanking environment is not good for enforcing those good habits. I think the problem with Ace is nobody has every coached him correctly in his life. While I think you should be able to put trust in your coach you just extended, it's an uphill battle for Hardy to instill these habits in a tanking situation like ours. If he comes to the Jazz, I think he's head for a Rudy Gay like career and then maybe he transitions into a role player like Barnes/Wiggins later on.