The one place I'd concur with you are those rando tieflings and goblins which just say a single thing to you. There's no reason to pan in on their face for that, IMHO.
Unless...currently there are some examples where we don't see a zoom in (speaking to the dead, animals, when you backstab a non-hostile character, etc). If Larian plans to change all of these to cinematic, then of course, keep even the one-liners cinematic as well.
