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

[EaraGrace]

Here comes the 50000 gil question.

Both Elidibus and Hydaelyn speak of a promise we made so long ago. Elidibus does not know to whom he made the promise and what it was. My WoL can't remember a promise either. Somehow I have the feeling that Elidibus and also Hydaelyn have promised Azem something.

Elidibus
What's it!? I have my mission!

Elidibus
I am Elidibus! And it is my duty to steer mankind and the very star upon their true course. This I swore to...to someone.

Elidibus
We spoke, and I swore...what? What did I...?

Hydaelyn
Though I knew failure after failure, by recalling thy tales---and my promise to thee---I found the strength to carry on.

Hydaelyn
Fulfill our promise. Right the wrongs committed when the world was yet whole. Silence the song of oblivion...


What have we promised ? I watched so many Cutscenes but there is no promise.

[Aneshda]

We never made a promise to Venat. She made a promise to our WoL, that's all. There is not a single Cutscene where the WoL made a promise. The same happens with Graha he says always we made a promise / he made a promise to us to visit Ishgard together.
I can't find any Cutscene where our WoL made any promise to him or where he made a promise to us. It is kinda irritating. It is like we read a Book and Page 151 is missing.

[CrownySuccubus]

We never made a promise to Venat. She made a promise to our WoL, that's all. There is not a single Cutscene where the WoL made a promise. The same happens with Graha he says always we made a promise / he made a promise to us to visit Ishgard together.
I can't find any Cutscene where our WoL made any promise to him or where he made a promise to us. It is kinda irritating. It is like we read a Book and Page 151 is missing.

With Graha, just before he "dies" as the Exarch, he begs the WOL to take his younger self with them on adventures, because he wants to be part of their story. I don't remember exactly how the PC reacts, but it's implied from the scene and the WOL rushing off to give the Exarch's memories to Graha later that the WOL "agreed" to do so.

[Aneshda]

With Graha, just before he "dies" as the Exarch, he begs the WOL to take his younger self with them on adventures, because he wants to be part of their story. I don't remember exactly how the PC reacts, but it's implied from the scene and the WOL rushing off to give the Exarch's memories to Graha later that the WOL "agreed" to do so.

Whatever we said in the "past", where he had been the Exarch, that stays in the past, cause I hate Fanboy Graha so much. I wish we could just refuse to do any Adventure with some of the Scions we dislike.

[EaraGrace]

We never made a promise to Venat. She made a promise to our WoL, that's all. There is not a single Cutscene where the WoL made a promise. The same happens with Graha he says always we made a promise / he made a promise to us to visit Ishgard together.
I can't find any Cutscene where our WoL made any promise to him or where he made a promise to us. It is kinda irritating. It is like we read a Book and Page 151 is missing.

Right she’s referring to her promise to us, as she mentions in the quote you posted.