Think this is a test? I'd think for business purposes it would make sense to do BOS/DCA-SFO OR BOS-LAX/SFO not two completely different city pairs.
I'd think Boston has more D1 demand than DC so i guess i'm surprised they didnt add BOS-LAX instead of DCA-LAX. I've got to assume this is just a test. Give it a year and see how it does with future expansion, if any, based on sales. Maybe they expand to more cities, or maybe it goes the way of JFK-SEA