With this and the Baldurs Gate 3 controversy it seems to only reinforce that todays AAA game development studios don't like being one-upped and having to deal with game features/functionality that they can't easily or are unwilling to recreate themselves.
The last thing they probably want is to be expected to have to add in NPCs that have a level of intelligence greater then a rock and can actually carry a basic conversation.
In other words, how dare you make a mod that makes the game do something we can't/won't do.