I suppose it’s a personal choice of where you set the bar for your systems.
Personally, as a software engineer who’s designed and built a lot of systems over the course of my career: nope - not if you want to just set it and forget it, that is. Which I do. And yes, most of the systems I’ve built professionally aren’t to that standard (mostly due to time constraints), which has consistently frustrated me, but you gotta be a little bit zen about stuff you don’t have complete ownership over.
Maybe your tolerance for manual intervention is higher than mine, but in terms personal standards, I don’t consider a system to be “done” until it’s configured to to handle itself resiliently and recoverably in all but the most catastrophic situations (I.e. basically, a hardware fault, or some sort of fairly serious upstream infrastructure failure).
All that said: YMMV. It’s a personal preference, and I know my standards would be considered abnormally strict by some.