Maybe its an EA thing. Have her remove the Shar symbols from her armor and have her be much more secretive until we get past the Selunite temple. There is evidence in the under dark of some clash between the Sharrans and Selunites. Maybe there SH gets a flashback through the tadpole about some horrible sharran rituals. Just to make it clear that these guys are no bueno even to the most dense players like me.
Her secret is honestly revealed way to quickly... maybe the skill checks should be at a minimum 20 to make only the luckiest rolls get you the answer early and even then they are half answers.
