Of course being in disagreement doesn't mean being incoherent. That's another strawman that you've built all on your own. You're good at that. I give you the benefit of the doubt and chalk it up to being inadequate at the use of English. Just read the thread, I disagree with a lot of people and don't claim they're incoherent.
I've demonstrated what natural state indicates, so have several others. I'll just chalk it up to the language barrier that you can't adequately explain that there's no such thing as "natural state".
You've proof of animals in Thedas not dreaming? You've proof of any species that's evolved during the tenure of the Veil that can't exist without the Veil? Of course you don't have this proof, it's all your head canon. Animals and their dreaming capability isn't relevant to the story. Bioware didn't create the gaming world with the intention of giving us thorough biology of all creatures living in the universe of Thedas.
Have you ever read The Lion, The Witch, and The Wardrobe? When the protagonists encounter the evil Queen, they find she's cast a spell that has placed the entire land in a perpetual state of winter. This disturbs the natural order of the weather patterns. It's an artificial construct. A spell that changes the natural order. The Veil is the same thing, just a different flavor. Instead of a perpetual winter, the citizens of the Thedas universe suffer a perpetual disturbed connection to the Fade.
The Lion, the Witch and the Wardrobe is a vastly different generation of fantasy from Dragon Age - I wouldn't compare the two. You might as well go a full extreme and head straight to Oz and Wonderland. Vast categories of fantasy do no consider world building to be a concern. While others, like A Song of Ice and Fire take a much more practical approach to their fantasy elements. While I find the fantasy elements of a ASoIaF the worst parts... I applaud him for approaching a new age of fantasy responsibly - taking into account the style in which he is writing.
Dragon Age approaches world being from a more realistic standpoint - a newer trend in an evolving genre (not entirely true, sword and sorcery tends toward more "realism" in fantasy. Howard's Hyborea was a vastly complex socio-political network and his magic was rich and detailed without being bogged down in the mire of "explanation")
Note: Animals dream in the real world. When writing - those things different from the real world should be explained or it is safe to assume they are no different. For all we know - wisps happily copy animal dreams before advancing to sapient creatures.
That headcanon criticism goes both ways... anyone making claims about ancient Thedas is completely wrong. One ancient elf's testimony would convince only the weakest minds prone to fanaticism and blind following.