If you look at the larian-video featuring an explanation the idea developed over the last larian games quite good and I agree.
Divinity Origina Sin 1 had started with a rock, paper & scissors mode in singleplayer decisions for character "traits", and in multiplayer it was a lot of fun to find out, if your playstyle or decisions were agreed by your "lan" compagnions. Beside the funny dialoges in real life before the pc lan games there was a second player experience through the dialogue answers and the characters could get for different answers different traits with dierect impact on certain abilities. There was no need to fully agree in every decision in multiplayer, the winner got the decision, but the traits were individual based on the proposals for answers.
Divinity Original Sin 2 indicated the voting of your compagnions in singleplayer for origin characters and gave multiplayer compagnions the possibility to make proposals for the main character, a more free oriented gameplay for decisions.
As I understand it, Baldurs Gate 3 as a different game following 5E rules comes with more gameplay based on your origin or individual designed characters. The answer of the thread starters idea would be a futher developement in real roleplaying scripting for dialogues, if the non player target character of dialogues/ situations/ decisions would be affected not only by the main characters answers alone, but instead influenced by gender, race, and maybe (best of) past decisions (since there is no strict alignment in 5E+). If larian achieves a bug free dialogue scripting for single- & multiplayer, it would be - together with the atmosperic cutscenes - a real next great step for the electronic roleplaying game world.
