[SPOILERS] Stormblood Ending

[Kallera]

Well that just kind of comes with the nature of how the linear nature of FFXIV story happens to work. They give dialogue options in that direction, an illusion of the choice since if your not going to engage in the war there would really be no point in playing the game. It's just mostly there to give a minor add on to the story rather then being an actual choice.

Which kind of annoys me, but that is another thing entirely.

I don't really see them as a hero, not because of the opposition, but simply all the things they've done suggest something that cannot and should not last. Much like the gods they have slain and institutions they've brought down, something can and should dethrone the Warrior of Light. The cycles of calamities seem to suggest that that is the case, as said beings eventually vanish from history, their ends a mystery.