CG Midlander

[Catapult]

Papalymo and Yda were aware of it...well mostly Papalymo as Yda is a silly girl but good with her fists. He recognizes it but maybe he doesn't have the Echo..at first i thought all Archons had it but now i'm inclining more towards to that only Y'shtola has it in the gang and she moves them all around..

What Papalymo says that needed to be stopped was the breaking of the seal..they all had different approaches to it ..Tanchred was more like trying to figure out what catastrophe was going to fall on Ul'dah specifically when in fact the tragedy was going to affect the entire world which leads me to think that the information Warburton was supposed to deliver was that the Empira was going to launch a massive attack to Silvertear Lake and take over all the crystal resources ...the breaking of the seal was an accident...and the star shower maybe marks the death of Midgarsormr

To pour a little bit of cold water, Futures Perfect has the archon you meet in these openings quests tell us that they will continue to search for the one that gave them this power. They certainly all have it, and broadly know what it's significance is, but I'm simply arguing they were not aware they had till you shoved it in their faces, much how like Minfilia does to you later. Understanding mooglespeak is not a dead giveaway.

It would indeed fit if Warbuton's information pertained to the battle Silvertear Skies.

I just don't want to assume the starshower we see happens in concurrence with Midgardsomr's death. The clouds open in a different location for each instance: just East of Ul'dah, North of Gridania and (iirc) South of Limsa.
The pieces would fit better if the echo sounded when the seal was broken, but quest#4's starshower happens after the fact.