I bet there are dumb contract reasons, i.e. if he hits a certain number of days on the main team from the practice team, he's due x-dollars and the new guy isn't.
And particularly with UCD since Davis sounds more like a surname than other UC locations.
Was randomly reading about the Irvine Company the other day and learned that the UC is named for the Irvine famliy not the city--the campus actually predates the city by a half dozen years.
As someone whose high school math teacher constantly and smugly and irritatingly called them "THE University of California," I think they should be UC Berkeley, like the other nine campuses.
The travel ban hasn't been an issue yet, with four Big Sky states on the list (five, if you count the past games against S. Utah), so I don't know why it would suddenly become one.