Still you never could fight for mages freedom or independence through you still had to gain support circle and status quo you just could decide if you want kill mages or not when mages collective were side quest and they didn't fought for mages freedom (same you may able to help elves in side quest).But in the end you may be forced to support celene or gaspard that may don't change elves situation just to gain forces on your side.Of course i myself hope they won't force me into such thing but they may do that.
Pretty much for all fighting for mages is small situation in the end that you said with boon.
True, my Surana Warden couldn't specifically fight for mage autonomy, but I thought the task of ending the Fifth Blight was a noble one, and it interested me as a player who walked in blind to the game. The darkspawn were a malevolent force that threatened everyone in the kingdom, and it was up to you to stop it before the threat overwhelmed all life in the nation. However, the Mages Collective did represent an opportunity to help a group of people who were dedicated to helping the mages living outside Chantry control, so there were avenues to assist the mages.
The Orlesian story in Inquisition (as carried over from "The Masked Empire") doesn't hold the same interest to me, because I don't think the system is worth saving, nor do I like the current candidates. In contrast, Queen Anora and King Alistair are progressive enough that I think positive outcomes can transpire once they take the throne, since both of them want to see things improve for the elves, and both want to help the lot of mages. In comparison, I find Gaspard and Celene incredibly unlikable, and I don't feel that either one deserves to sit on the Orlesian throne.
What's being proposed by some people - the idea that Briala might be a default enemy who the protagonist will have to strike down for having the audacity to oppose the oppression of her people, or that the story will force the main character into siding with Celene or Gaspard - is something that doesn't sound fun to me. I'm not going to have fun playing as protagonist and helping restore an empire of institutionalized racism. It would be as much as fun as playing New Vegas as a woman and being forced to help Caesar's Legion because the Plot Dictates.