Quote Originally Posted by Keltest View Post
The citizens are actively turning as you get into the city, and even beyond that Mal'Ganis is actively in the city with his army as well. There is no time. As far as a moral dilemma goes, its a very strong one. In universe, Jaina and Uther even look back and believe that their total rejection of Arthas in that moment was probably the deciding factor for his fall, and one they would take back if they could.
In their defense, Arthras didn't give them any wiggle room. It was either murder everyone or 'treason'.