Yep, that has been an issue for a long time, especially just a couple years ago when So Cal ASA States only gave out 3 berths, but there were still that many teams playing. At least now there are 12 berths. But even with that, some very good team(s) get knocked out due to a tough draw, while another (perhaps weaker) team makes it through. That happened to Batbusters (Snow) last year.
Now that you have the So Cal ASA website link, send a compaint to the Commish.

PDad, the Breakers team that won 12u ASA Westerns in 2010 was Breakers (Imoto), not Sieber. So, Imoto has a berth to 14u Nats this year; Sieber does not have a berth (Yet).