This was one of my main issues, I have no idea how or why this design was settled on, but making it awkward to simply move individual members of the party is...bizarre.
I can only assume it started as technical limitation that a smaller indie game like DoS1 didn't have the resources to solve. Larian needs to solve it now though; they're out there saying BG3 is a AAA game, and no self respecting AAA game would leave such an important part of its design so much worse than the genre's decades old standard.
