No, I think it is, in fact, somewhat interesting. I was at Uber until a couple of months ago and left for mostly unrelated reasons. A significant proportion of the people I worked with had 3-5 years of tenure at Uber, families, homes. Not people who could relocate easily, even if they wanted to.

There's an obvious and boring explanation for the prevalence of "willing to move" on this list, and that is if the layoffs mostly hit recent and more junior hires. Another company I worked for had a significantly younger and more mobile workforce, and it wasn't uncommon for new hires to move to the bay area from across the country, and then relocate to another regional office or even overseas just as easily.

Not surprising in general, but given the reality that SF is the most tech-dense city in the world, it's an interesting observation that people perceive jobs to be scarce enough that the opportunity cost of leaving is worth more immediate employment.