This should just happen underneath the hood rather than being a feature. It exposes plumbing that as a user I don't want to think about.
If I have instances in an ASG I don't manage them individually unless I enjoy pain. I think of the group as a collective.
The entire promise of the cloud is that it takes care of things like this for me. Instead it's something else to think about.
Don't misunderstand me--I'm glad this feature exists. I just wish it was "a thing ASGs did underneath the hood."
