Did we, or did we not, bring darkness back to a world flooded in light, fulfilling the legend of the heroes of folklore (ie The warriors of darkness) on the First (since the WoLs are villains in their collective consciousness)? Anybody who thought we'd be "switching sides" or batting for Zodiark for a lark is an idiot. "Um actually Hydaelyn is the true villain despite everything in the game showing and saying otherwise" is a pretty poor take. Genocide is wrong. I don't care how thirsty you are for Foxy Grandpa Emet.

The entire point of a trailer is to create intrigue and make you ask questions (eg "Why is Y'shtola going by the name Matoya? Is she doing the folklore/fae thing of hiding her true name? Did she get possessed by grandma? Is Matoya a title like the names of the Ascians we know?" "Why is the Crystal Tower surrounded by a bustling settlement?" "Why is Minfilia a kid?" etc). Red herrings being sprinkled in is not uncommon. Frankly I'm more disappointed when there aren't any.