Yeah it would be nice, although it didn't really bother me in TW2. I liked the way DS didn't lock you into a dialogue and you cold just walk away (or accidentally hit and aggro...) while npcs were talking to you.
I've been saying this for ages. Let some conversations take place in real time from the same camera perspective as conventional gameplay. This would ease cut scene fatigue and also save them time and money to elaborate on the conventional cut scenes even more. Arkham Knight is doing this already. The cut scenes are dynamic and treated almost like gameplay.