Not many people on this planet can claim to be responsible for an outage of this scale. What leads to this, and more importantly, what can be learned from this, deserves a discussion.
Your post sounds like you want to defend the "one" person responsible for the actual problem, which is something I fully understand and care about. I myself didn't read the 4000+ upvotes thread at all, because it was not about the actual problem, but about ranting.
I think a problem of this scale emerges from a culture, and the only job of a CEO is establishing culture. Which is why I think we have to discuss the role of a person which happened to allow something like this to happen twice within just a few years, and more importantly, what can be learned from their mistakes.