Sidelining from the ancient elf conversation, there's another interesting point in Gaider's essay:
The Old Gods were not creators, though they were supposedly also not created. The Old Gods were outside of the Creator's Plan and showed up to whisper to mankind and teach them magic.
When I read this I was like, what? I remember reading a codex entry somewhere that the Chantry considered the Old Gods the Maker's First Children.
Upon digging through the wiki however, it turns out this info's found in one of the Dissonant Verses, namely the Canticle of Silence, Verse 3:
The Old Gods will call to you,
From their ancient prisons they will sing.
Dragons with wicked eyes and wicked hearts,
On blacken'd wings does deceit take flight,
The first of My children, lost to night.
-Silence 3:6, Dissonant Verse[8]
And that's just, why exactly would the Chantry makes this a dissonant verse? The only other dissonant verse we know of's in the Canticle of Shartan, which was removed because they had Andraste promising the Dales to the elves there, a promise that the Chantry then reneged on when they launched the Exalted March.
But the Canticle of Silence... what exactly's so damaging about having the Old Gods labeled as the Maker's first children? Making them the Maker's first children brings them a level below the Maker after all, so it's actually even complimentary to the Chantry.
Why remove it then?
Without the Canticle of Silence, the first children being referred to in the Chant are the spirits of the Fade, with mankind being second.
So, do they not want the Old Gods associated with spirits? Or do they not want them associated with the Maker? And why?