Things can go wrong, but really, its been a lot and we're normalizing that to an unhealthy degree...
I wonder if it was down that much, if users would get credits the way we pay when we use the services - its kind of ridiculous for a critical service to be down that much and all we do is "ah okay, its just github". Like, as if that was normal to be down that much...
I don't think it's been "normalized". Github uptime is literally a joke in the tech community. They have first mover advantage and a behemoth behind them so they're not going away, but everyone knows how shit it's uptime is. It takes time for organizations to move away from services like this but I would bet anything that many are starting to try to move away, as well as new companies knowing they shouldn't use the service.
I think the authors of SMTP had a healthy attitude towards server uptimes:
https://datatracker.ietf.org/doc/html/rfc5321#section-4.5.4....