Chicks dig the long-ball.
Plenty of people over-learned the Hoiberg "spacing spacing spacing" mentality.
People tend to forget those Hoiberg teams were very good but hardly dominant, and their main failings were they got killed on the boards and were bad at defense (though still much better than the goat rodeo it was last year) even if they scored.
Yes, teams like the Warriors' dynasty had great shooters as their foundation, but it also had excellent defensive players like Klay Thompson, Andre Iguodala, and Draymond Green as fixtures. I already brought up what the non-shooting Rodman meant to the Pistons and Bulls' dynasties. I do not get how people reject this reality.
Everyone is aware of Eastern's offensive limitations but as you suggest, they can be accommodated. The issue with the kid is that he (and evidently his mother) think he is a guard or perimeter player but his current skill set and prior production strongly suggest he is a low post player offensively. There is no need to guard him closely beyond 10 feet. If he is hellbent on being a guard offensively, he really needs to sit out a season and develop his shooting range. If he doesn't sit out, he will likely remain only a low post threat, he won't be playing on the perimeter and he/Mom may be a pain in the ass for the staff and teammates.