so you’re suggesting entire regions go down at once or one of the AZs? An entire region doesn’t go down. So again, you are not building for high availability.
i don’t remember seeing us-east go down in its entirely. show me supporting evidence or this is FUD. multiple DCs physically separated, different flood planes make up a region. it’s not easy to down an entire region. the biggest event they had, the S3 one you’re talking about, effected only 2 AZs and didn’t allow new EC2 instances to start and iirc some EC2 instances failed as well. this is a far cry from the entirely of us-east having an outage.