No the problem is that github has to stem exponential usage increase and prepare 30x of their capacity, that's not symptom, that's problem.

It's both and, it's a symptom of exponential usage and a problem with infrastructure. The question you aren't asking is "Why is it a problem with GitHub's infrastructure?" the answer to that lies somewhere in between: Microsoft + Azure + Copilot. Now tell me which of those have anything to do with GitHub as we know it?