Are you kidding? That's an insane amount of load increase to manage. "Scalability" isn't one thing, especially not at that level, so it's ridiculous to knock them for it. That amount of load ripples across your entire infrastructure.
Why do we keep giving excuses to poor engineering disciplines + poor management? This problem is entirely GitHub's making and acting like it's some unplanned natural disaster is low key pathetic.
Next: proficient engineering managers, not just people who immediately bend a knee to the middle manager.
Oh wait, I went into sci-fi territory again. My bad.