Equilibrium must needs be restored [heavy sppoiler]

[Fenral]

Another thing that bothers me about their obsession with "balance" is they teach people how to summon primals, which sucks up the aether from the world and puts everything in danger. How is that bringing balance back?

What you should be asking instead, I think, is where is that aether going? If we can one day understand that, I think we can understand the entire conflict.