SF's (SV's) problem is that it refuses to build houses commensurate to the number of people who move there. Any number of well paid jobs from any industry would have caused the same problem. High paying (middle class) jobs (outside of manufacturing) are not a problem.
> If this just means that tech is finally spreading out a bit
For better or worse, the exodus of tech companies out of SV could have been prevented. The valley could have captured nearly the entire industry if it just built more houses. Billions (likely trillions over the course of a few decades) of dollars will not flow into the local economy.