To be honest, her territory isn't really managed all that well—it's just that, with the Doomsday game system as a cover, people are more willing to follow along.
In most other territories, the Lord's identity is already exposed. Everyone knows who the Lord is, so their expectations are higher, even believing the Lord gets all the benefits. In such cases, managing becomes tough, some policies can't be put in place, and how could the territory develop properly?
If your identity is exposed and you want things to go your way, you need either an iron-fisted approach or the ability to win people over with virtue.
Honestly, it's much easier to hide behind the system.
But even if she were accidentally discovered, given the special nature of the Lord identity itself, there wouldn't really be any danger, so it's not a big deal.
She didn't want her parents to stress too much about it.
