Really? You give stars based on Defense!? If that's the case 90% of HS 3, 4, 5, star kids would be eliminated! If anything, desire, rebounding "effort" and Basketball IQ should be put way ahead of actual Defensive abilities. How to play in front of your man, moving feet, hands out or up, are all skill sets that can be learned actually fairly easily with a decent coach. You should know that.
But, desire, effort those things can't be taught. HS basketball players should be getting stars on potential, based on size, speed, ability to create shots, making those shots, court awareness, rebounding, and the ability to make teammates better on the court. Defense, can be learned, as long as desire is there.
Now if you were evaluating a College kid, going into the Pro ranks, that's another thing. But you are not!
PM has the one ability that very few HS kids have in todays game, the ability to put the ball into the hands of the shooters, while sacrificing his own shots, and 6'5" point guards in HS don't grow on trees. That's rare, and warrants a higher star consideration from the so called experts. Throw in the fact that his court awareness is exceptional for his age, this kid is a at least a 4, maybe even a 5 star. This kid will be a Pro, and won't be because he can score 30 points per game, or his great defense(though I expect it will get much better in college). He'll become one because of everything he does that others don't.
And, I say this with no skin in the game.