I agree that there is a lot of immersion breaking scenarios and inconsistency, and not just with Durge. Regarding Durge though, it astounded me in my playthrough when discovering things while talking to Gortash that not one companion spoke up during the conversation. Not a single remark from any of them, and then not even back at camp. I ended up reloading a save and took several long rests before actually entering the city so that it was through a dream that the butler made the big reveal, and then I had a scene play with Jaheira, which made much more sense story wise, but there was still just silence from the companions during the conversation with Gortash. A huge turning point in the story and no one had anything to say about it? Big let down. (Not even afterwards for me but this was back in Patch 2 so bugs maybe)
