[jasode]

>, but it's clear that businesses that maintain their own infrastructure would've avoided today's AWS' outage.

When Netflix was running its own datacenters in 2008, they had a 3 day outage from a database corruption and couldn't ship DVDs to customers. That was the disaster that pushed CEO Reed Hastings to get out of managing his own datacenters and migrate to AWS.

The flaw in the reasoning that running your own hardware would avoid today's outage is that it doesn't also consider the extra unplanned outages on other days because your homegrown IT team (especially at non-tech companies) isn't as skilled as the engineers working at AWS/GCP/Azure.

[qaq]

The flaw in your reasoning is that the complexity of the problem is even remotely the same. Most AWS outages are control plane related.