Board Thread:General Discussion/@comment-26006155-20190820122909/@comment-26907577-20200106204710

This is one of your arguments (the one we're contesting right now): We're not willing to make that jump without more evidence.
 * 1) The portal was still active after Gaster was erased. Right now, we aren't contesting this.
 * 2) Therefore, Alphys used the portal to evacuate the monsters out of the universe.