I think somewhere down the line you have an answer to problem itself. Its for a while that companies are not into the business of sympathies, we should probably not get into that side for the topic.

1. Github has enterprise users who paid for the service, their day job requires Github to be available and working

2. Github has generous free tier which is the one which is exploring a lot more with the AI generated code.

It is a complexity in itself but the traffic should have been separated, the free users should not be allowed to bring down Github for enterprise customers (Just to clarify, I am free user myself). And if they do not have capacity it would have been perfectly fine to push back or throttle new users/repositories.