Indeed. I do not have the resources of one of the largest companies in the world. I still know they fucked up badly in ways that any serious engineer should be able to handle, let alone teams of thousands of well-paid engineers.
I have failsafes at my office. Power goes out? We have emergency lights and lanterns. Forgot my computer at home? I have a spare there, with needed data in the cloud. UPSs for extra runtime. Google goes down? I use Thunderbird, so I can get emails not sent last minute. Internet goes down? Phone as hotspot.
Failsafes go into all sorts of systems.
Emergency supplies? My office. Wife's work. In boxes in garage, between the cars. In 5 minutes, we can be gone with enough supplies to get us through a few days and enough clothes to last us indefinitely. Can we stay home? We have enough food and water for several months.
Failsafes everywhere.