The moral outrage here is laughable. If one is going to rail against the Crabs for holdbacks, rail against almost every club team out there.
The "age based classification with [sic] put and end ot the Crabs perceived dominance" line is funny. Crabs had incredible teams back with everything in youth ball was age based. Nice try.
Instead of complaining about grade based teams (which no college coach has a problem with), tell your son to work on the wall. | 
