I think its the fact that people have used the software for so long that they feel emotional to it (Hashimoto crying tears of sadness when he decided to move ghostty away from github) and there is completely nothing wrong about it as we are emotional human beings.
But, you are right in the sense that, Github has failed to accept its part of the deal which is actually to just be a usable place. People HAVE previously tolerated so much AI slop and slowness in github's UI just because of its reliability but this downtime is like the Github's achilles heel.
At some point, I recommend people to accept this and move to more healthier alternatives, there is also an momentum. For example, the only reason I joined github was that I wanted to join codeberg but so many of projects used github and involved sign in with github that I finally gave in into github and I had thought that codeberg is so good but nobody is gonna come here because of the network effects but the tide is turning and I hope more people look into codeberg and healthier alternatives.