While I live in SF and SFO is about as convenient for me as OAK, all this means is even with only 2 flights is more congestion at SFO.

With the issues we have at SFO when there's a little sprinkle outside, I think that having a few reliever flights into OAK from atleast the hubs wouldn't be a bad idea.

But interestingly DL and US have never pulled out (in fact, DL added)