While this is true, I'm pretty sure the referenced poll was conducted well before that was announced. In fact, I've heard internal criticisms of the opposite direction.

The prospect of a full time shift to remote was not communicated as context for the poll. Employees answered the polls thinking they were talking about how they'd go to the office given COVID-19 (a lot more people saying they'd do 50/50, when in reality, that just reflected their lack of comfort due to the disease).

Companies should be sure not to confuse actions people are willing to take due to a pandemic to be what they'd do in a post-pandemic world. Same thing with productivity: just like we don't know the long term impact of this disease, we also don't know that employees will remain as productive as they've been so far.

And employees want to pay less rent, and that could skew the results too.

If I could live in Omaha with a FB bay area salary I'd live like a king

This is a very biased interpretation. Your salary may not be adjusted if you work in a similar CoL area. Only if you move from HCoL to LCoL (and vice-versa!)

Too many people assume remote work always means working somewhere far away from a major urban city.

If you currently live in Silicon Valley, there are very few (none) other places you can go to that would match the cost of living.