What's the point with that quite lackluster story in Endwalker?

[kpxmanifesto]

The fact they hyped up the moon so long and so much only for it to quite literally be the zone we spend the least amount of time in is….disappointing to put it extremely lightly.

I remember when I first got to the moon, I thought I was already at the end of the game. The way the game was advertised in addition to the events leading up to that point, I thought the moon and Zodiark were supposed to be the finale. Very confusing.