1. She is a bch. Insulting, condescending and generally unpleasant. However, she provides absolutely nothing for the Inquisition. She is literately useless when it comes to story, she adds nothing IMO. Morrigan was a bch but she added a lot to the story including the huge dark ritual offer at the end. So all that "i'm a bad bch" is for nothing, she is not impressive.
2. She is a "loyalist". You have to be an idiot to not see the way things were was not right. Even if you believe in Templars+Circle of magi and magic serving man it still desperately needs reforms like Cassandra says.
3. She is the only divine choice that makes you feel like she dosen't fully appreciate/support the Inquisition.
4. "My dear" "Darling"
More i can't think of right now but i'm sure will remember when i replay.