At worst, you send him back to AAA if it's not working out in MLB. It's not like he's out of options or that he wouldn't understand being sent back down.
His BABIP was crazy high before reaching AAA, but his 333 BABIP in AAA seems normal. He still had a 139 wRC+/898 OPS. He has a great hitters eye, so I think you'd see if he can't handle it very early on if his bb rate plummets or not.
When you have a guy that could reasonably win the ROY and give you a PPI, I think you put them on the roster right away.