The reason the AAU is a non-example is that it not only has all of club lax's grade-based problems, but also has a well verified legacy of age cheating by coaches and parents. Changing to age-based ball would change nothing, because there is a culture of noncompliance already.
Those things happen in youth lax as well (Cavaliers and True Balt/Maryland come to mind immediately) but it's seen as a negative thing by most of the parents, players, coaches. Lax culture, at its typical worst, is to work around the rules and use any gray area, not explicitly break rules and lie publicly. I think this will inherently make age based youth lax slightly less of a disaster than age based basketball, baseball, football. | 
