What I find absolutely hilarious about these 'What if' scenarios is that the power is entirely in the hands of the writers. If they're not interested in you saving Amaurot, then you can't and you won't. They can come up with any number of reasons why it won't work, because they set down the rules for this in-game world. It's a bit like arguing with your DM. 'Oh, you reminded Hermes' about Meteion? Tsk, tsk, shouldn't have done that, now. He's gone and betrayed you, and his creation, Zodiark, is now a blasphemy, so Amaurot still falls. Tooo bad. Want to try again? We can go at this all day.'

Lore is about understanding the world that the writers are creating, not trying to control it.