This might be news to you etc etc but its not just a storm, in season of the drifter (i think) we learned that the nine (more specifically, Earth) helped ghauls assault by keeping him hidden from sight etc etc, their reasoning? They want to steal the light (some of them) so they assisted someone (ghaul) who was already planning on stealing it to see if it was even possible/how to do it themselves. All of this is from memory so some of it might be off but the main point is that it wasnt "just a storm"