I don’t think it has anything to do with people not “resetting” the holo projectors. I tried that in Ascalon yesterday and Silverpeaks to day, activated all the holo’s in an area, killed off the dragon event holograms and then went back after the holo’s reset. Still no aetherblades. Tried again and still no aetherblades. If the aetherblades are spawning at projectors the spawn rate must be less than 1 in 100.