The problem is that thus far, Darkness has been equated to evil and chaos. It's the element the Ascians run on, and that their god is aligned to. The Ascians spread Darkness by sowing conflict and misery in the world.
Now we need to turn that around and find out what this "Darkness" is that won't require us to go around the First being horrible people.
The description of our end goal (as given at Fanfest) made me a bit more hopeful, because restoring the natural darkness of night sounds a lot more promising than spreading chaos, but the question remains of what we are expected to do to restore that balance - hopefully without compromising our 'goodness' in the meanwhile.