I do rather think that she is only marginally aware of her own culture and how they deal with tadpoles. She is not told anything, I believe. Or, since they make a total fuss to rescue her in the intro, she is very important and does not want to tell and/or that someone in the Gith society wants her dead. I still suspect she is some form of princess, messias incarnate, heiress, the breaker of chains and dragon necks etc., because there must not be normal, frontline grunt companions.