Locke has already made his mind based on Kaminsky's age and now has started doubling down with a ton of things he doesn't like about him without even having watched him much. For example, the craziest one I heard from him is that Kaminsky is a ball stopper and doesn't share the ball and needs to hold the ball in his hands for a while before he decides what to do. I was like WTF when I heard it. Kaminsky is one of the best big passers in college basketball and if there's something I've noticed it's the complete opposite - that he makes good quick decisions and his feel for the game is extremely good for a big.
I would take what Locke says about prospects with a grain of salt, especially when he admits he hasn't seen much of them and has started pushing talking points about them even before he's seen a single minute of them(he started crapping on Kaminsky based on his age, before he even started doing 'scouting' for the videos he's doing).
Now don't get me wrong, for me his age is a concern(and not the age specifically, but rather the chance that he's towards the upper part of his development curve), but piling on with BS only to support your per-conceived notions is never a good thing.