How would a lawyer negotiate this up? They aren't firing people, they're just offering people to option to leave. Do employees here have any legal leverage?
No leverage through the offer or blog post itself, but if they have evidence of harassment or other misconduct, and screenshots from Slack, then it's more likely for a potential claim to result in additional severance versus any sort of litigation, especially since Coinbase is now inviting departures and inevitable conflict.
Being an adversarial employee when working on an exit package certainly is FAR from necessary, but it's also not at all necessary to put people out of a job during COVID due to _culture changes_.