There was once, but they "mysteriously vanished" after half a day.
You mean
cured, surely?
I'm also thinking that Fort Joy probably isn't at the top of anyone's list of places they'd like to be posted and is probably the military's equivalent of being sent to the Eastern Front: there's no inclination to treat them well, no reason to do so as they're pretty much as trapped there as the prisoners, and it's fairly clear that the higher echelons are about as corrupt as it comes, so any resources they are given for repairs and accommodation and spent on vulgar paintings and trinkets.
That's a good idea. And Alexandar only comes a few times a year around, takes his source powered wands (or whatever he uses those stuff for) and goes away with them and a few new shriekers. The chief judge has a few screws loose, so it could be like you have written.
Besides, Alexandar seems to be a pompous douchebag, that doesn't concern himself with such worthly problems like administration. His Magisters have to honor to fight for him, surely they can suffer a little bit for the greater good?