It's already happened to Amazon once, and they were not able to recover the data from the destroyed data centre, so they have already experienced this and have some data on which to make those decisions.
If you are referring to the recent UAE datacenter attacks, AFAIK Amazon's services worked as advertised, but obviously a redundant resource is only as good as the number of copies you have left, and eventually 3 of 3 datacenters were hit.
Apparently not all AWS resources/services are redundant - some are advertised as single location, and then it's up to the customer whether they choose to pay to make backups elsewhere (e.g. in a different region) or not.
If you are referring to the recent UAE datacenter attacks, AFAIK Amazon's services worked as advertised, but obviously a redundant resource is only as good as the number of copies you have left, and eventually 3 of 3 datacenters were hit.
Apparently not all AWS resources/services are redundant - some are advertised as single location, and then it's up to the customer whether they choose to pay to make backups elsewhere (e.g. in a different region) or not.