But my question is who do you think started that belief? Because it really does benefit both the evanauris and Solas's followers.

Since there apparently were more evanuris than just eight, and Solas successfully killed some of them, it really doesn't make the survivors look very godly if one of their number got taken out by some average Joe with a grudge. So they deify him, hope to kill him, and nobody else will be able to take his place because they're clearly not a god. It's sort of a last ditch attempt to control the narrative once they realize they can no longer just brush him off.

But Solas's followers also definitely benefit from that narrative because it's so difficult to take beings worshiped as gods and humanize them (if you'll forgive that term). That can give them hope that their struggling isn't pointless, that they aren't raging helplessly against these cruel gods, because they have a god on their side as well.

This is something that plays out during Inquisition as well. While technically none of their followers are calling the Inquisitor a god, people definitely believe Inky is more than just a simple person and you can't convince me that in another century or so a break-off group starts worshiping them (probably started by that cult in the Hinterlands). And on the other hand, Corypheus repeatedly talks about Inky like they're also trying to become a god, like he is. And it doesn't matter how much the Inquisitor may try to protest, everyone is trying to elevate them to be more than human (elf/dwarf/qunari).

Skyhold.

The Sentinel of the Frostback Mountains.

Scene interpretation of my Inquisitor Ilaan Lavellan with her Dread Wolf. She would be right in the middle of that final battle the whole time! Face close up under the cut.

What can I say… I like my blades as I like my babes. Sharp and deadly. Amazing characters, who’ve struggled a lot, went through abuse and came out of it still smiling and slaying, trully they are daily inspirations for me.  

They just deserve a lot more attention from this fandom. A lot more. A lot.