Google networking SRE here (my team runs ns[1-4].google.com among other services).

Regardless of original intent, the blog doesn't land well with me. It could have provided the background on flowspec, using their own past outage as a case study, without any of the speculation or blameyness that came across here. The #hugops at the end reads quite disingenuously.

We see other networks break all the time and we often have pretty good guesses as to why. But I personally would never sign off on a public blog speculating on a WAG of why someone else's network went down. That's uncouth.