In a regulated environment the compliance with development processes need to be proved. An organization needs to be able to access all artifacts for about 10-15 years depending on the regulation requ...
While technically you are correct that it should be able to reach out to the VCS and retrieve the review versions; not all review documents are version controlled, and often necessarily temporary files like Static Analysis and Unit/Verification test reports. In clearcase streams can be deleted preventing/" or making it extremely difficult" the retrieval of the review versions. So the approach SmartBear has implemented seems correct.
I was trying to point out that the delete content store request as submitted here, is a somewhat miopic view of the larger content store issues. I was suggesting a different perspective to the problem that I think has a wider appeal and is inherently a better solution.