It's an OOC solution to an OOC problem, and IC bureaucracy is going to prevent it from being the expedient that's needed.
From what I know about what's going on IC, banning Allison from Astrum could be made to work perfectly well as an IC thing.
This judgement is an OOC punishment on Allison's former realm-mates.
No, it is not. It is a punishment on Allison.Just because it happens to have the effect of delaying your ability to do what you want with the duchy does not mean that the judgment is a punishment on you. That is extremely small-minded and selfish thinking.