I've played every incarnation of pen and paper D&D and the early Baldur's gate games, as well as DOS2. I also own a copy of Solasta. I've worked as a gaming conceptual artist for PC games for over 20 years.
In my opinion, BG III shouldn't be trying to copy the limitations of a PC game made in 1998 that was then designed to try and simulate another game designed to be played with pen and paper and people's imaginations.