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

[Denji]

i mean.

if we're going to go the mary sue route then the WoL qualifies more than venat.

in order for a character to be a mary sue it needs to:

1. lack a personality
2. be extremely persuasive (she cannot convince her peers)
3. her powers and abilities would be both overpowered yet undefined, however we defeat her twice
4. she would hook up with another character and be the primary love interest of everyone
5. she would need to be a snowflake design-wise but she's an ancient and her robes are the same robes that any other person in the convocation would wear if they decided not to return to the life stream
6. she would always be in the spotlight however we did not even get to see any direct interaction with her until the beginning of stormblood

now you might scream "but Hydaelyn is a mary sue then" but... yes. she's a god, or rather the image of one. if you get a group of people together and have them imagine that would be the most perfect, powerful being in existence then most are going to imagine some overwhelmingly beautiful, good, powerful being. but she's from a time and place where everything is perfect and nothing is bad so it makes sense.

then comes zodiark, a being made from far more ancients. while this is true we also are aware that zodiark was around for days, if not weeks/months after he was summoned. he used his powers not just to enthrall(this is debatable) but to also kickstart the stagnating currents of aether in the planet and around it.

considering how powerful the Meteion(s) had become it makes sense that a significant chunk of his power would go toward protecting the star from this threat. if he's too busy being distracted and having his power drained to sustain the star then we can assume that it could give hydaelyn the upper hand.

we also don't know how much aether/power or whatever it takes to sunder a star. it's entirely possible that it takes far less power than restarting the celestial currents around a star. additionally, zodiark also didn't stop protecting the star and its multiple reflections even when sundered which was done to limit his power in the first place. the entire point of the rejoinings was to return said power to him.

and my final point is that the plan the ancients made with using zodiark was always meant to be temporary until AFTER he was summoned. they brought him into existence to halt the issue to give them the time to locate the problem. however as time went on that plan fell to the wayside because without everyone dying they all had time to see that the planet was now in ruin and, additionally, were now more interested in worshipping zodiark - their savior.

now is venat a 2-dimensional, boring character whose just another savior white chick? absolutely. i don't like her. while not quite wallpaper paste-levels of bland like minfilia, she's still completely and utterly boring. benign and tasteless. which to be honest is probably fitting for a goddess of stasis.