Look I know it was an oversight, I just really like the story they tell in the world. Of course I'm confused and annoyed at some things in the game, but I wont let that detract from my enjoyment of the story. And thinking up new pathways or storylines, I enjoy. Take Nokris, while I'm intrigued to see if they're really dead or not, when we first learned of him, I wondered if he was trapped in the vex timeline, erased from all but physical recordings Another example, is the alpha conduit lost sector in Io. Did you know, now theres a taken blight there protecting the vex hydra? All I can think of is the vex mind that was taken by Oryx and given to Savathun, and either of them is trying to preserve and maybe take the vex network again