My response to that is yes - admins would need to re-add the rank if someone disconnects accidentally, but I feel this is a small price to pay to prevent people keeping testificate forever because either no one bothered to demote them or they left during a trial and did not come back immediately.  Currently those users can build anywhere and cause damage anywhere.

I also realize this change will be irrelevant when the new map and plot system goes in, but I think it will be valuable until that time.