Yes see, this is why it's a pointless exercise for me to go back to every moment I saw was clearly idiotic to provide you with examples. You are going to warp each and every one it into an ol' Desiderius "ashkully here is why it's based and subversive".
It's not subversive, she literally has a background feat "aristocrat" (hence rapier training), and thats her (at least on the outside) character. Even when you take other companions, say Ember, she begins to REEEEEEE on u and interject.
i don't remember much of her writing because I consider her a worse fanfiction than dragonspear inserts, but your argument that there is not a single reason for her to talk all the time is not correct.
(it doesn't excuse overall graphomania in the game: but if there was to be graphomania, it's characters like Kamelia and Daeran who should reeeee the most)