Actually, most NPCs refer to Hydaelyn as the name of the world.
The Scions are among a select few (e.g. the Ascians, the primals, and Midgardsormr) who seem aware that there's an intellect behind said world. The Echo -- or the Blessing of Light -- seems to be the sole means by which one becomes aware of her. After all, the Scions aren't running around singing Hydaelyn's praises in any sort of paradoxical contradiction to the Twelve (save to the leaders of the city-states). It's only once the Warrior of Light recounts his experience that Minfilia and the other Scions go out of their way to explain who and what Hydaelyn is.
...of course, I could be entirely wrong. It's been a long time since I paid attention to the 2.0 MSQ text.
The Scions are among a select few (e.g. the Ascians, the primals, and Midgardsormr) who seem aware that there's an intellect behind said world. The Echo -- or the Blessing of Light -- seems to be the sole means by which one becomes aware of her. After all, the Scions aren't running around singing Hydaelyn's praises in any sort of paradoxical contradiction to the Twelve (save to the leaders of the city-states). It's only once the Warrior of Light recounts his experience that Minfilia and the other Scions go out of their way to explain who and what Hydaelyn is.
...of course, I could be entirely wrong. It's been a long time since I paid attention to the 2.0 MSQ text.