It's a few years now I can not see Github focused, from the external POV at least, to provide good coder tools. All the new things only marginally improve on what we used to have. I would worry more about that than about the losses themselves, since I feel the losses mostly reflect the fact the company has no clear direction so is spending money on workforce in the hope to have larger effects. Perhaps they don't need more people but more focus.
Agreed; they need less people and less money. Look at what GitLab's achieved! Maybe it's time to leave the posh accommodations and go back into the wilderness.
That said, I feel for the engineering staff that has to deal with the availability requirements and the DDoS events. Those folks are heroes.