Interesting thread. I'd tend to agree with the OP's points; narratively there are a lot of issues with the storyline in general at present.
My overriding concern is that it is symptomatic of having these exceptional and at times convoluted companion backstories which seem at times to overshadow the main protagonist's own story. I always felt the companions in BG2 had stories which for the most part were interesting enough and embellished the main storyline without taking over but some of these Origins companions behave like a bunch of social media influencers utterly desperate for attention and urgency.
What I loved about that miserable dwarf Korgan in BG2 was that he just upped sticks if your choices didn't align with his and that could happen fairly promptly and inconveniently, leaving you a party member down. Annoying as it was the first time he left my party, I respected that because it felt real and he made his intentions clear; he didn't hang around waiting to see if the main PC would follow his cause. There were consequences is what I am trying to say. All the inferred consequences in BG3 are yet to come to bear fruit, or at least the last few times I played.