You are saying you disagree, but then you talking about teaching kids an action, not a play. Also, you reference hero ball. Are you assuming that because I don't favor spending a lot of practice time teaching kids plays that I suggest you just let the kids do whatever they want? I believe you should be teaching them concepts like spacing, and movement, and basic rules and let them think and learn for themselves. What I have done in the past was give them rules and concepts that create movements and actions that have purpose, rather than numerous plays.
Kids all learn differently and at different rates. For some of them, learning your "Carolina" play, even if it only has 5 steps, is extremely difficult. They wind up playing worried about remembering the next step of the play, and not thinking and seeing the court. If the time spent learning plays is really spent teaching them concepts, and the "whys" of plays, then great. But I have seen coaches spend the majority of precious practice time teaching them to memorize the choreography of 5 plays, because they believe these plays are the magic plays that help them win.
I just simply believe in teaching kids how to play instead of teaching plays. You sometimes have to use plays to do that, but it's a BIG difference.