From what I heard they finished fourth in their league tournament. That is how I assume they got in since they are 6-15 and have a better strength of schedule/head to head/significant wins than Milpitas to be 7th rather than 8th.
There should be less automatics and more at-large births. Maybe just the league champs get a birth and the rest are at-large decided by the CCS committee.
On the boys side there are two at large. Seems both went to WCAL teams (Bellarmine and Saint Ignatius, is my guess since they finished bottom of the league).