Quote Originally Posted by Anonymoose View Post
The First was already Light-heavy, but had fallen into a delicate homeostasis. The Shadowkeeper was supposed to help break that homeostasis and tilt a bit farther towards Light (the path of least resistance, I suppose), which would pull all of the elements to an unnaturally umbral charge and cause it to begin to diffuse into the Source. Striking down the Warriors of Light while triggering a disaster on the Source would have led to a Rejoining. Instead, the Warriors of Light defeated and spared the Shadowkeeper and killed her masters, causing a violent lurch even farther towards the Light.
I do not know if First's Ascians were native to the First, but following this logic, would not the First be tipped even more to light after we killed Emet-Selch?