The problem with you is your poor memory. I already said Berkeley says it on its own website. So what are you arguing? That no one disputes that? Here, the ex Chancellor Bergdahl even admits he was told not to use the term flagship to describe Berkeley by his bosses at U. California:
http://chancellor.berkeley.edu/chancellors/berdahl/speeches/future-of-flagship-universities
There's a lot out there about UCLA's Chancellor in particular pressuring Berkeley to drop use of the term. Bergdahl does a good job of describing the terms importance and usefulness, and he makes clear that Calfironia has multiple flagships.
Bergdahl argues here that more than one school in a state should have the flagship designation because he sees such schools as being set apart from others as they are research intensive.
The term flagship first popped up in the 1950s with the GI Bill. It didn't exist before then. U. Calfornia reorganized in the 1960's with this:
http://en.wikipedia.org/wiki/California_Master_Plan_for_Higher_Education. Under this plan, the university's revenues, tuition, budget, etc., was placed under the control of the President of the University of California system. Subsequently, the Berkeley Chancellors were told not to use the term flagship.
As usual buggsy, you're wrong.