The inn is empty. There are some people there, but they're all the staffs. There are no customers at all.
After the second vampire raid, I think that no one is willing to stay at an inn so close to the gate. That's why none of them are here now at night. Though if it's just eating or drinking, this place is quite crowded because food and drink are cheaper here than in other places.
But maybe because of the attack, there were not many people drinking even in other location. Most of them prefer to just go to the inn closer to the middle area.
In this base, there are some expert level mages acting like the guards of this city. They are getting rid of troublemakers. So, even if everyone here is with the cult, that doesn't mean that they can do anything they want.
...Of course if they have money and power, they can do anything.