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

[Xirean]

Then how would they showcase their animated steaming tea that goes cold because we are talking so long that everyone has forgotten to drink it?

Oof, fair. That would indeed be a tragic loss.

Emet-Selch: This is preposterous! I would never become a megalomaniacal murderer like that!
Hythlodaeus: Perhaps we should view his/her/their memories firsthand?
Emet-Selch: Why would I want to do that?

Seriously though, I was disappointed that we went to Elpis and didn't get any training on how to further control the Echo. How cool would it be if we were able to use it on a more conscious basis?

The one thing I've been wanting since ARR. "Can someone tell me how to control this damn thing? I'm tired of passing out randomly!"