I sympathize with anyone whose rug was pulled from underneath them.
I was served a layoff notice a year and half ago. I couldn't complain: the notice was given 60 days before the cut, the company added some outplacement services, and severance pay was generous. But it was still a layoff that affected predominantly older and more experienced workers, and the company insisted they didn't discriminate by age, which is baloney, and that's why I have no particular desire to return back to that company, even though their pay scale and benefits are awesome. I found another job with a lower-level responsibilities and lower salary and skimpier benefits, and have recently changed jobs to something more aligned with my set of skills, benefits at the level of the company that had laid me off, and more stability.