The Sith Empire was wiped out not just by the Republic and Jedi but also by their own rivalry and petty power plays.

But a small splinter fleet broke away from the greater galaxy and remained hidden on a hidden planet called Feuer, a mineral-rich wasteland with few patches of usable land and water sources. Here, Sith culture continued uninterrupted for two hundred years

That is, she you found it. A Jedi woman had found the Empire, and this security risk was handily dealt with. All that's left to do is decide how to handle her. Kill her, torment, or maybe turn her to the Dark Side. But the servants of the Light are cunning, and there is just as much a risk she will turn her captor to the Light Side.