Really, the only positive point for Olynyk going relatively high is that McDermott is projected in the late lottery and he was a four-year student.
... McDermott also had a far more celebrated college career, though; arguably among the greatest scorers in NCAA history. Plus, he'd be a year younger. That year matters a lot.
Late first-round pick at best for Olynyk and after the McDermotts and Paynes and potentially even the Napiers.