South SF is far less accessible than Stripe's current location in Townsend St (Soma, SF).
I'm curious to see how many people leave because of this move. Tech workers in SF tend to live in Soma or the surrounding neighborhoods (FiDi, Mission, Dogpatch), which means for a worker without a car, their commute was previously a short bike, Muni, or Uber Pool, whereas to get to SSF they'll be looking at this (to get to a BART station), a BART ride, and probably a shuttle at the far end, because Oyster Point isn't near transit.
I worked for a company that moved its HQ (due to an acquisition) to Brisbane -- slightly closer than South SF -- and ended up buying a car to commute, because the walk + BART + shuttle combination took so long.