“How is it possible that Vol’jin took so long to release the Echo isles from Zalazane?”
Honestly this one hurts to see everytime, because an important factor seems to always be cast aside. It seems like people are not aware, at all, of Zalazane’s true power.
People tend to make it look like a measly novice expelled an entire tribe away from their land. Zalazane was no Lich King but he was non the less an incredible threat. Trolls bear knowledge unknown to most races of the planet, they are masters of dark magics, empowered by powerful Gods. Many Trolls have even been able to transcend death itself.
There are great examples:
Zanzil could revive the dead with ease. Indeed the “New” Zul’gurub would have been nothing without him.
Jin’do. Aah, the Godbreaker! A Troll so powerful he could bend the Blood God Hakkar to his will.
Gara’jal, the Spiritbinder, This Zandalari lived on as a spirit after his defeat in Mogu’shan Vaults, only to empower every Troll leader in the throne of thunder through posession.
Hex Lord Malacrass. This powerful Amani Troll, allied with Zul’jin, imprisoned the spirits of powerful Loa into four carefully picked Amani warriors, giving them incredible power.