Obviously you have a very different definition of "submission" than I do, because it is not absurd to say the Dalish governing themselves means they have some more autonomy than the city elves. That is the very definition of autonomy. The fact that the Dalish understand and adapt to the reality of their circumstances doesn't mean they submit to Orlais. THAT is what is absurd. After the Fall of Halamshiral the Dalish chose to make moving around their way of life. They had few options but it was still their choice and many of them prefer it that way now.They don't constant try to settle and then flee when humans come running. Isolationism is not submitting to humanity. By the same logic Orzammar submits to the darkspawn because they are forced to hide in their one remaining city while the darkspawn exterminated their entire empire. They might want to settle out in the rest of the deeproads, but they can't because if they try the darkspawn would wipe them out. But for elves and dwarves a reaction is not submission.
If you are suggesting that Orlais recognizing the Clans is what makes the difference between being autonomous or not, then Empress Celene tried to reach a formal deal with them in the Masked Empire. They refused but it still meant Celene was willing to treat with them.
But whether another nation recognizes something is largely irrelevant to the reality of the situation. Tevinter recognizes Seheron as being part of of the Imperium on their maps, but it's almost entirely rule by Qunari.
The Grey Warden's treaty with the Circle is with the Chantry which governs them. They are ultimately the ones that control how many mages the Wardens get.
The dwarves have, for the most part, submitted to the darkspawn. They've resigned themselves to a slow genocide by the darkspawn. We've seen two exceptions: Bhelen, who wants to unify their society and try to push to restore it, and Branka, who despite being a complete flipping loon, risked her life to recover the Anvil of the Void. Their doing more than just accepting the hopelessness of their situation.
The Dalish accepted the eradication of their homeland and culture by Orlais, and their entire society is build to exist in such a way as to avoid drawing the ire of the humans. Isolationism is submitting to humanity, because it's allowing humanity's whims to decide where they live, how they live, etc.
Let's take an example. The Dalish need halla as part of their way of life. Suppose humans eat up and settle all the best grazing lands. What is the isolationist solution? Take the second best lands - suffer the death of halla, the pain and suffering of the Dalish - for the sake of avoiding further conflict. That's just capitulating without even bothering to fight.
I'm not suggesting that recognizing Orlais - or that any country recognizing them - is what this is about or should be about in terms of autonomy. It's about pushing back. It's about organizing themselves, and taking a stand.
The only elves we've ever seen standing up to humanity in the games were the CE protagonist, who went after Vaughn despite the way it would obviously go down (without Duncan), the CEs who rebelled, and realistically Zathrian who, again despite being a vindictive loon, justifiably fought back against the murderers who committed atrocities against his family.
The Grey Warden's treaty, based on what the game says, is with the Mages, not the Chantry.