I've had my head buried in software post-mortems lately. I particularly appreciate the treatment DevOps Handbook gives them as far as spelling out Systems are

I've had my head buried in software post-mortems lately. I particularly appreciate the treatment DevOps Handbook gives them as far as spelling out Systems are Complex, there will be many contributing factors, you need to take in multiple perspectives to fully illustrate what happened. This lines up with the article's analysis although the conclusion is a bit sensationalist, I'm loving the long list of 'other techniques' they present right before it. 5 Whys should really be considered a place to start and encourage people to go deeper into failure analysis, then work towards more formal methods.