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

[Theodric]

From what I see right now, recent WoW refuges are expecting typical story flow like WoW: a big bad evil dude, someone important dies, an epic battle against this evil dude.

I'm not entirely convinced that such a theory holds, given that a number of posters commenting within this thread and others have a join date that suggests that they are, in fact, not just riding the recent tide of 'refugees' from WoW.

I don't think many people are arguing in favour of black and white morality, either - but more so actual stakes for the protagonists and lasting consequences.

For normal FF franchise players, this is an epic story telling.

I disagree. I'd attribute the storytelling in previous expansions to be in line with previous Final Fantasy games, though the franchise has never really shied away from meaningful consequences. Both the early and more recent games have examples of major characters dying, settlements being wiped off the map and so on - whilst not limiting such things almost exclusively to the antagonists.

Those who expecting wow style of lack in-depth character growth will never like Endwalker, that is just how it is

Such is subjective, I believe. WoW's storytelling had many flaws but many of the characters felt distinct to me at the height of their respective story arcs. The Scions, meanwhile, strike me as very bland. They don't often express much agency of their own and often exist in the present day to fawn over the player character.