> the company knew her termination would take away “critical employment benefits” – described as “cornerstones of her financial stability” – meaning she “had no choice” but to accept the severance agreement, allowing her to retain many of the benefits and obtain a significant cash payment.

Not that I’m siding with Facebook, but isn’t this true for basically anyone being fired?

Yes. The trouble is that to be able to not starve to death while you’re looking for a new job, you have to sign away a ton of rights, basically including the ability to sue for wrongful termination or expose wrongdoing. It’s a situation with an extremely unequal balance of power/leverage.