I think you're undermining the seriousness of a physical event like a fire. Even if the likelihood of these things is "vanishingly small", the impact is so large that it more than offsets it. Taking the OVH data center fire as an example, multiple companies completely lost their data and are effectively dead now. When you're talking about a company-ending-event, many people would consider even just two examples per decade as a completely unacceptable failure rate. And it's more than just fires: we're also talking about tornados, floods, hurricanes, terrorist attacks, etc.
Google even recognizes this, and suggests that for disaster recovery planning, you should use multiple regions. AWS on the other hand does acknowledge some use cases for multiple regions (mostly performance or data sovereignty), but maintains the stance that if your only concern is DR, then a single region should be enough for the vast majority of workloads.
There's more to the story though, of course. GCP makes it easier to use multiple regions, including things like dual-region storage buckets, or just making more regions available for use. For example GCP has ~3 times as many regions in the US as AWS does (although each region is comparatively smaller). I'm not sure if there's consensus on which is the "right" way to do it. They both have pros and cons.
Google even recognizes this, and suggests that for disaster recovery planning, you should use multiple regions. AWS on the other hand does acknowledge some use cases for multiple regions (mostly performance or data sovereignty), but maintains the stance that if your only concern is DR, then a single region should be enough for the vast majority of workloads.
There's more to the story though, of course. GCP makes it easier to use multiple regions, including things like dual-region storage buckets, or just making more regions available for use. For example GCP has ~3 times as many regions in the US as AWS does (although each region is comparatively smaller). I'm not sure if there's consensus on which is the "right" way to do it. They both have pros and cons.