Spoiler I know he was changed for happy ending, I even expected the gang would fight the Astrals. I mean, even when Tabata was still involved, the description of Noct's episode went with the lines of "parting way with the Astrals" so I assumed they would defy their tragic fates. I don't even mind that everything is preordained or that Ardyn was betrayed since the main goal was to eradicate the Starscourge - I actually find this very interesting. BUT now it seems Bahamut is like a Bhunivelze, he simply wanted everyone dead because they dared to defy the mighty god. I mean, its not the worst idea I guess but we have seen that already in FF. Basically, if they only haven't said that Bahamut planned Terra Flare during the War of The Astrals, I would have been fine with everything. This part alone disappoints me the most. I would still like to read the full novel though, summaries never can give you the full picture.