Cynical but in a dumb way. A moment of thought will tell you that lost productivity by being all remote outweighs the benefits money that the FAANGs are saving. If they could just shovel that money they're saving to the employees to get that productivity back, they would. A smarter cynical take would be that it's more likely that 1) they know their employees don't want to risk COVID-19, 2) they don't want to risk the…
I don’t think any productivity differences between distributed and co-located teams have been conclusively demonstrated one way or another.
Besides, even if your claim were true, a company that hired outside of a single metro area (in most cases, the SFBA) stands to gain more from drawing upon a much larger talent pool in the long run.