Comment by EB66

> I mean, my company does this for certain failure scenarios involving our CDNs. Can anyone tell me why we're idiots, or is this just hyperbole?

I came here to say exactly that. Our company uses DNS entries with low TTL for failover and load balancing purposes as well -- it's a very common approach. Services like AWS Route 53 and CloudFlare make it very easy to setup and low cost. I was surprised that the author didn't give much acknowledgement to this type of usage.