miller has sample size issues, lots of these guys are projections, you can draft on projection but it's a bigger risk cos I guess your betting on the prospect makeup, which determines how hard they work in making their physical gifts count in the pros
Miller was also a 19yo freshman who was both coming back from injury and had been out with injury for the year prior.
As WoW admits, their WS approach works for draft projections only about 70% of the time. That means that if conventional wisdom is correct, about 30% of prospects will wrongly appear over- or underrated by their approach.
These are the guys who had Nick Fazekas projected way ahead of Durant (and Oden), were big on Yi, down on Rose and Westbrook, and so forth.
As far as I can tell, their method doesn't control for first-year teenagers playing and being measured against 23yo seniors.