Vlad yes, once I learned it, it became evident and I won't have problems in the future. That said, hiding and showing items with seemingly obscure logic behind the scene only adds to the confuzion of the user, especially when deleting a named window organically happens from within that window more frequently than from another window.
I know there is a lot of work to be done so I won't insist on this feature suggestion as I've mentioned initially, it's minor with rather low impact. I'll leave it up to you to decide if this is worth picking up or not.