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

[Striker44]

I don't think I'll ever understand how people see the Convocation as nothing more than another group of Oppressive Shadow Council that holds all the power. They're literally voted in by the people, Hythlodaeus says as much. With the sole exception of the Fandaniel we come to know, Hermes who was groomed for the role by the previous Fandaniel. Nepotism, in other words. Kind of like how Venat was grooming Azem to be the next her. Odd how those who rise to their station that way turn out to be such bad eggs, eh?

I'm curious where you got this idea from. Everything I remember seeing pointed to the members of the convocation themselves being the ones to ask and then appoint successors for their roles. I don't recall seeing anything about a democratic election of the Convocation by the ancients at large.