You can play your character how you want, RP her how you want. But I'm sad to say she's walking lore bomb. Primals are destroyed as Liadan said, because they poison Hydaelyn. The reason the Garleans haven't amassed a massive force to attack Eorzea and rid of the primal problem, is because the primal problems in other places are greater, seeing the scions are snuffing out what primals pop up in Eorzea.
