It's name is the Harbinger, Capital-letter H. And Iridirkon has everything he needs to summon them. Yrel, as we keep reminding you, isn't even on this plane of existence. She's not the most obvious antagonist, she's not even on the top 10 of most obvious potential antagonists at this very moment. I doubt many of the developers even consider her antagonistic because she's only as hostile to the Mag'har as any Alliance leader is to the horde.
You have no reason to say these things with such confidence. "10th anniversary of WoD and 20th anniversary of WoW?" Absolutely insane to base an anniversary expansion on the one with the lowest critical rating & biggest drop in subscriptions. And not on Azeroth? Absolutely not.You're thinking too literally. They are the proxy of an elemental theme. They are elemental. The same way N'zoth is a proxy of the Old Gods as a whole. The original comment was correct.