The job of House Governments is to have complete control over events happening within the house, that is the only way for the authorities to keep everything as lawful as possible. This includes complete control over a station too.
Would it be plausible for a house police faction to just let a station be there as is and hope it won't turn against it's surroundings? They struggle with enough unlawfuls already, they cannot risk the existence of an other one. They have to make sure the station will not commit law breaches. And having complete control over it is a good way to handle things.
Indeed human beings are not flawless, but then as everybody have their own set of rights, everybody have the responsibilities coming with each right. If the actions of a house police are unjust, they can be held accountable for those actions. If not, the whole Government can lose it's ingenuity.
On an other note, why build a lawful station where you don't trust the local authorities?
So far as I've experienced, there are efforts to have less issues handled by admins and more handled by game mechanics, e.g. the tech nerf system. I'm unsure whether the admins will take responsibility over such things as this.