The whole point of AWS is to forget about maintaining hardware infrastructure.
Amazon are the ones who should have made backups in multiple regions, and transfer the load on failure.
Amazon are the ones who should have made backups in multiple regions, and transfer the load on failure.
And Amazon does have all their stuff available in multiple regions. It's up to you to use it though.
If that were the case, you wouldn't be presented with region and availability zone options.
Would it make sense for Amazon to maintain automatic backups (and potentially charge more for them)? I don't know. It might make business sense, it might not. But their service is apparently popular enough even without it.