That's a MUCH better link. The data in it makes clear what we are seeing is a flight to quality.

The top ranked, best known Cal State schools saw enrollment grow. The lesser known and lower ranked Cal State schools saw enrollment fall. There are more lesser known Cal State schools than top ranked Cal State schools, so on average the system saw a decline.

The California Community College system (lower ranked than Cal State) saw enrollment fall more than the lower ranked Cal State Schools, and the University of California system (higher ranked than Cal State) saw enrollment grow more than the upper ranked Cal State schools.