This has come up before, but in my view there are flaws in this approach. Basically, it's this: for a good number of years, the draft culls any young players that are likely to be drafted by the time they were juniors or seniors much earlier than those years. It usually wasn't that case, but now it is. A player like Josh Primo goes in the lottery, or a Duren, and so on; teams are likely to grab them very early and spend money/years training them.
Good enough. The problem, now, is in assuming that any player that gets through this gauntlet, i.e. is a senior by the time hits the draft, is therefore not very good or cannot improve. Basically, because he has not been drafted yet.
That makes sense, but in this case, this is actually only Keegan Murray's second year of playing college basketball. And he made a terrific leap between years.
So... we're (potentially) punishing him for his age, but not recognizing his experience. He can definitely not pan out, but my point is that he's more like an older sop re in college than a senior.