Yeah, NPC reactions to player actions in general are pretty unrealistic and/or nonexistent. I've elsewhere mentioned the examples of fireballing/smashing "unowned" doors/containers or the ground right next to NPCs, and of successfully sneaking a few inches behind an NPC's back and stealing stuff while the rest of your party is standing a few feet away; neither of these types of actions get any kind of reaction from the NPC(s). I'm hoping Larian can work on these issues over the beta period - at least to the extent they have the resources.