You know the worst about that. In every zone there is two series of 4 story side-quest (first quest is always a aetheral wind quest, 3 others are yellow quest). When you finish those 2 series of side quest there is a quest that conclude both lines with characters from both. In the Pelu Pelu zone, one of the quest is about a lalafell that tricked a Pelu Pelu into buying corrupted crystals, and the pay-off in the conclusion quest is that they will use the corrupted crystal to transorm the fire and thunder aether left by valigarmanda into earth aether so they can grow better crop in the mountains, mentionning what you with wind aether for Garuda. There is a side quest that solve that problem, making it a non problem. If you did that quest before, this whole segment just feels weird. You just want to scream "game, you litterally gave me the solution 12 hours ago"