He might be right, I initially applied to only UCLA and Cal, but somewhere around may 5 I received an email from UCSC and UCR asking me to fill out a small form which asked for my UC application ID and Choice of Major, I ended up getting offers of admission from UCSC and UCR within a week.
Just wondering why would they ask students who were not even interested to apply, and end up accepting them while they still have interested candidates on the waitlist!