True - but the datacenter burning still hits you where it hurts if your entire Kubernetes cluster is living in that datacenter.

Whereas if you make a point of spinning up each Linux box on different datacenters (and even perhaps different providers) you are at least resilient against that.

Using advanced tooling doesn't remove the need to do actual planning beyond "oh I have backups" - you should be listing the risks and recoveries for various scenarios - though being able to handle "AWS deleted all my servers because I returned too many things via Amazon Prime" means you can also handle any lesser problem.