It seems pointless to have these questions in the reviewed tab, as they have already been closed. There is nothing else to do to them, and they take up space.
There is nothing else to do to them
This is where you are incorrect. These questions are thrown onto the "Review" page, and we can actually edit them, and improve them. Once they are improved, we can flag them to be re-opened by a moderator, or by asking on Meta. I am against taking them out of the review tab.