And going by lore, aetheon and co. controlling and warping time, surely after his death would resolve time back to normal as the hierarchy of vex shows they all have a singleminded purpose that is controlled by the higher up units. Cut the head off the snake so to speak. Not to mention Kabr who mashed down a gorgon into a relic to create a stable pocket of space. So at the very least the guardians who won with a relic should be immune :]