This may be a bit of a thread necro but I can confirm this as well, at least up until 2009. I was socio-cultural but I did a field school, lab work, and got a letter of recommendation from an archeology prof who was not particularly happy with many aspects of the Cal anthro department, to the point that this prof recommended I go to another school if I got in and they offered me better funding. Unfortunately, this person's displeasure was known and, from what I gather, summarily dismissed by many of the socio-cultural folk. There was more than a little speculation that this person's would leave if given the opportunity and for many reasons I would not assign them any blame. And I write this while considering myself much closer to the more postmodern, socio-cultural corner of our discipline.
Gah, replacing gendered pronouns for anonymity makes my writing sound incredibly awkward...