they mean the raid Crucible of storms or w/e not court of stars. But even that wasnt a third tank job. it was done bya dps that got a buff. reworking how bosses function is just a bad idea. The answer is they would just talk up and bunch the boss like any other tank. Paladins already use a nearly full kit of ranged spells but stand in melee so it would just be more of the same.