I encounter the old lady/hag near the swamp and the two guys looking for their sister. Didn't know she was a hag at the time, but something was clearly off. So when the brothers attacked me, I decided to use non-lethal damage so I don't kill them. Then when I found the sister at the hag's hut, I told her that the boys were looking for her. Her response to that was "NOOOO!!! EVERYONE IS DEAD!!!!!!!!!!". And I'm sitting there like...I went out of my way to NOT kill them...I even threw healing potions on them afterwards. What is going on?

So, yeah, I get it that allowing for different dialogue for non-lethal options in every situation implies lots of extra development. But if you aren't going to accommodate it, then why even include the non-lethal option? It feels like a lie.