You know he only called himself kell of kells lol. He lead a broken fallen clan after escaping from prison he never actually was the kell of kells. That was a title he gave himself. We still have yet to defeat the remaining fallen clans. Not to mention we arent sure how powerful the fallen are weve only seen there broken pirate clans not there offical forces like the cabals main forces jusy broken clans scattered around the galexy. Theres a lot we dont know about the fallen or the cabal. Everyone thinks cabal would be a better fight but they would be no better then the fallen as far as we know. What do you want amother vex raid? Why? Another hive? Were all damn tired of the hive.