Aye, I think one of the main issues is DnD itself puts a heavy focus on all the dialogue options being for Charisma classes due to that being the stat tied towards the dialogue specific skills (Persuasion, Deception and Intimidation). With any deviation being Class specific (I.e. Druids get a lot of wise adages to spew out from quoting Silvanus' teaching. Monks get some pretentious inner peace dialogues, Wizard gets a few lines in regards to "I read about this in a book one time", Rogues get lines about being career criminals (Despite this being more appropriate for people picking the "Criminal" background) etc.)
For future games that won't be based on DnD, there would be more leeway to have dialogue options tailored towards other attributes, such as more logical takes for "Intelligence", sagely takes for "Wisdom" etc. Without necessarily having to tie certain dialogue option types to a specific attribute I.e. Persuasion is Charisma based. So it's always some sort of charismatic option rather than persuading through logic. In a similar fashion Intimidation is also Charisma based, so you can't threaten people using your Strength or Dexterity (I.e. Like how upon first meeting Astarion he grapples you and puts a knife to your throat)
Of course, the main concern is always how much effort is required to write all these many options (And hiring VA's where relevant, though this is mostly moot if Larian continues to make mute protagonists) which is often the limiting factor for option availability.
