> why would anyone actually stay?

People who are on a work visa would likely be hesitant to not click 'yes' at this point. Given all of the recent layoffs there are probably also some people who are afraid of being able to find another job and have medical/family/debt issues.

But yeah, if you're confident you could find another gig and have money saved up, the 3 months severance to escape that mess would probably look really good right now.