Good points here.
I'd specifically add "sorry, I meant no harm/that was an accident!" option when you hit someone by accident. It was possible in Oblivion and a nice feature without which close combat would be massively aggrevating (well, worse than it already was...). Of course, it was much more needed in a first person action RPG, but I think it would be worthwhile to add it to BG3.
To prevent abuse, it could be used a limited number of times within a timeframe and/or the damage would be healed upon making peace.