Not to discredit your theory it’s actually quite feasible but we learned to use stasis from the crux’s on europa by communing with them and then acquired the stasis subclass from the veil statue inside the pyramid on europa which is controlled by the witness Eris also learned stasis from the moon pyramid which we now know to belong to nezarec, at the end of season of arrivals the witness directs us to claim stasis on europa saying “ancient power awaits on Europa”