This is honestly a minimum to avoid getting sued. Otherwise an enterprising lawyer might be ready with some arguments about promissory estoppel.

What is the severance offered?

I don’t know how you can determine what the minimum is without knowing the severance and etc.

I’ve read two months pay in a CNBC article, which for most of these folks is tens of thousands of dollars. They won’t be starving by any means while they search for a new job.

Yeah that’s not bad.