Quote Originally Posted by LineageRazor View Post
To be fair, we kind of ARE literally tripping over hundreds of her agents. There are THOUSANDS of player characters in the game, and in a player hotspot you could easily see as many of them as there were floating around the crystal in that opening scene. Those player characters (along with a handful of NPCs) are her agents.

There may be only one Warrior of Light (you), but the other player characters in the game are part of the lore, as well. NPCs comment on the many adventurers frequently.

This does not discount the possibility that there may be agents outside of Eorzea, though. However, it IS the case that Eorzea is special. Aetheric energy is much higher in Eorzea than elsewhere, and that could be why Hydaelyn's efforts are focused there. It could be easier for her in her weakened state, or perhaps it is a more "valuable" conquest for the Ascians and therefore requires a greater degree of protection.
Most of the comments on other adventurers, especially in SB, are exclusive to the English as a way of poking fun at things. Even then we don't know if the other adventurers are considered agents of Hydaelyn, just that they have the Echo.