How many people did they fire without severance?
They're just butt-hurt that the severance that they built into the company for themselves and not for others was not afforded to them.
A bigger fish came along and gave them a taste of their own medicine.
Fuck 'em.
(Unless someone else comes along and proves to me that everyone fired from twitter by Elon or these 4 got 32 million dollars in severance each.)