I really don't like it because frankly, it makes them feel more two-dimensional. To me the lack of interaction with each other makes them feel even more like they only exist for the main character. In DAO we got so many varied relationships within the party. Alistair's mistrust of Morrigan, his surrogate mother/son relationship with Wynn, Leliana's curiosity about Sten, Oghren's buddy-buddy relationship with Zevran, that made them feel so deep and real. They were people capable of existing when they weren't talking to us. DA2 took that to a whole other level. Fenris and Anders' seething hate for each other, Anders and Merill's contention relationship because of her blood magic. Merill and Isabella's fondness for each other, with Merill's admiration and Isabella's protectiveness. Varric being friends with everyone of course. Their party banter was even able to show off deeper layers of their relationships with one another and by extension, themselves. Pathfinder: Kingmaker? I can point you to Tristian and Regongar's unexpectedgood relationship, or Harrim's understandingand tolerance for everyone around him in spite of his doom and gloom attitude.
The BG3 companions have none of this. They're not people, they're stories for you to interact with. Their party banter is entirely predictable. I think that the fact our Tav is the only one they end up clashing with makes their abrasive personalities worse on reflection, because we end up feeling like their sounding board. They don't exist as mirrors for us, but they exist just to tell us about themselves. This is amplified by the factthey're all very self-involved and selfish in their quests. Even Wyll, who I do think is good at his core, his quest is a selfish one. So there's the disconnect where they exist only to interact with us, and get reactions out of us, but at the same time they're all entirely self-involved. And I think for some people that leads to a wrong balance, where it feels not like they exist to give us their stories, but that we, our Tavs exist to recieve their stories. That they're the most important things and we're just there to interact with them.
This is further exacerbated by the situation where, in my opinion, our Tavs aren't really able to exert a lot of personality in response to them. If we don't want to be rude jerks to them then our only option is to be kind of meek and passive and to sit there while they give us their stories. And I think that is without question the worst thing this game does, and as far as I'm concerned, that lack of flexible player personality - especially compared to other rpgs - is why this game kind of fails as a roleplay experience and is in my eyes, a middling experience overall.
