Pricing is all over the map. Today I see some midweek $49 LAX-SFO WGA+ fares with Basic blocked from purchase on those flights. LAX-OAK is double the price with a $30 WGA+ differential.
In general, the price differentials between days of the week and between co-terminal cities are greater than I can recall seeing.
I infer that Southwest is thrashing, searching the pricing space for some more profitable corners. Which don't exist, especially now that the brand has been destroyed.