Ebon Cultist Drops

Hi, Im sure this is a bug.

I have farmed the 5 skull Ebon cultists in Seq Colossus since you guys built that zone. I have only seen one change in their loot drops in a year and I have slain probably 100,000 of these mobs. They now drop the dothraki like swords. But, I dont think you guys have ever updated their loot tables to the new stuff like artifacts, recipes and potions. I farm this place non-stop and they have never dropped any of these and considering how many I have killed, I would expect to have some by now. Can you update these 5 skull mobs to the latest loot algorithms please? The melee Cultist have 900 hp which is as much as the rise mobs that drop them. We should at least get 5 skull percentage drops on these.