I certainly didn't say everything is terminated like EC2, so I don't know where you're getting that from.

And it looks like we agree: any attempt on Amazon's part to create something like this would be complicated and would still not remove the risk of data loss. An service interruption is, of course, a certainty.

So as far as I can see, the feature still doesn't make much sense. It's only really useful to people who aren't doing anything in Amazon that matters.