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

[ApolloGenX]

I would also point out that one issue I had was with the whole concept of sundering so that we could interact or "sense" dynamis easier.

What is the point of that?

In the end, the goal was to use Aether to travel to UT to kill Metion. Why couldn't the Ancients have done that? In fact, we even needed their help. The only point where we influenced dynamis in UT was to get past obstacles the Ancients could have easily bypassed.

In the end all we did was build a ship to get us there.... and apparently the Ancients could have done that (see moonship).... we are even tested to see if we are strong enough by fighting Venat herself.... well great, but we still aren't as strong as a group of ancients just going and killing metion themselves.

It really feels like the entire story relies on the assumption that no one would believe Venat.... which I don't get, since there is plenty of evidence (including work notes from Hermes), witnesses, and a tracker to prove the source of the issue....The ancients believed us as a "familiar"... why wouldn't they believe Venat?