As an example, I note that GCP responded within 7 minutes according to their timeline. If you’d been using Cloud Run, that would have reduced downtime by over 7 hours — and there’s a good chance that you never would have gone down in the first place if the unknown trigger event was related to other customer activity or something odd Railway did.
There’s also a complexity factor: note how much complex infrastructure they mentioned having to fix that you wouldn’t need for your own account. That code does useful things, I’m sure, but it’s also a lot of moving parts which a hosting provider needs and you don’t – this outage took everyone down, whereas individual AWS or bare metal users would’ve otherwise been unaffected. There isn’t a global optimum which is the same for everyone but I think developers are prone to wildly over-estimating how much time they save by removing a couple of deployment steps relative to the direct costs and the less obvious costs of working within someone else’s environment.