Yeah so it's been mentioned in the comments already, but to everyone in Fastly right now: I feel for you. Something like this must be insanely stressful, and not just during the outage. There will be (should be) a massive post-mortem. People will be losing sleep over this for days, weeks, months. :( Edit: There seems to be a major empathy outage in this thread. Disgusted but not surprised, unfortunately.
Call me old fashioned but the latest trend of showing "empathy" for a serious incident, then proceeding to dance around the aftermath of it, whilst people give themselves a pat on back in a retro/post-mortem, isn't the way to do it. People need to be blamed, and responsibility for actions taken (without covering asses)
the attitude that "people need to be blamed" will never improve reliability in the long run. people come and go; systems and processes endure. blaming people is the best way to avoid making durable improvements to systems and processes.