i heard this third hand, but apparently cfn was slated to get this feature but it was nixed because of concerns with increased support requests. the official stance from amazon now is that you should be able to trivially destroy/recreate resources and cfn isn't going to adopt anything that makes it easier to create stateful deployments

it does suck to have to copy the contents of an s3 bucket just to move a bucket inside of a template tho, for sure