Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - General voice overs

There's no way they can do voice acting for the player's characters, the way dialogue is currently worded is quite ambiguous - to allow you to invent your own phrasing to specific situations, for example.

*imply that he's a moron for believing such ridiculous notions*

This is not a specific statement, but rather an explanation of the intent. It would be extremely difficult to add voice acting to this, as they would have to change the wording on every one of them to add specific text to the choices.