The whole idea of the Qun just relabeling people as a different gender based on their job is just idiotic to me. The Qunari used to seem super harsh but at least logical. There have been plenty of cultures where women aren't allowed to fight and whatever social and cultural things grew from that, it was based on the core instinct that women must be protected because they're more reproductively valuable than men. A womb is precious and you're not going to throw it away just because the woman is good at fighting. If you're not at some level basing your gender roles on the preservation of your species then your gender roles and restrictions are pointless and make no sense. Why would the Qun proclaim that women can under no circumstances be fighters and then immediately flip it around and be like "well we'll just call them men" who are they trying to fool with that? What loophole are they trying to make in their own culture and for what reason? The Qunari are logical, mind controlling, and forbid individuality. They would have no use for gender roles, only biological sex for baby making purposes. A logical culture (if you set aside reproduction value) would assess every person individually (which we already know they do) and assign them roles based on what they're best at. They wouldn't arbitrarily restrict by gender. This whole concept felt so forced to me because of how illogical it was. David Gaider said in one of the threads on the matter that they hadn't thought of the Aqun Athlok concept when making DA:O or DA2 and to me it really shows. It seems tacked on and contradictory. I know they wanted to show acceptance of transgender people, and that's awesome but do it in a way that makes sense. Have it not be an issue in the non-Qun cultures of Thedas, have Bull as an individual be supportive and protective of Krem, but don't shoehorn in a concept that doesn't make sense and doesn't mesh with what we know of the Qun.
Though I believe I understand your view on this subject of sex, gender, and warfare (in fact, my husband has the same perspective) I think that I have a different perspective due to knowledge of some historical cultures which were, for their time and place, logical even though their thought on gender roles resembles that of the "illogical" Qunari.
People say that the Qunari are inspired by different historical cultures. I've heard socialist, communist, and Muslim thrown up as possibilities. But without arguing for or against those suggestions, I will admit that I've always related the Qunari to pre-Christian Vikings in my mind. I could be the notion of giants with big axes, sweeping in on dreadnoughts, void-bent on conquering, pillage, all of those naughty things. It could be the egalitarian thought - meritocracy of the pre-Christian Vikings. It could be the relation to dragons (yes, I know the Vikings didn't really ride dragons to battle as told in the stories, but sailed ships with dragon heads on the prows)
And another similarity is the view on gender and warfare among what some propose is Qunari, and what Saxo Grammaticus said was Viking/Dane. Please keep in mind that Saxo is viewing another culture through the lens of Christianity, a patriarchal culture in which women (as defined by their genitalia rather than their natural inclinations or skills) were often forbidden by law from doing things reserved strictly for men (as defined by their genitalia).
“There were once women in Denmark who dressed themselves to look like men and spent almost every minute cultivating soldiers’ skills. They courted military celebrity so earnestly that you would have guessed they had unsexed themselves. Those especially who had forceful personalities or were tall and elegant embarked on this way of life. As if they were forgetful of their true selves they put toughness before allure, aimed at conflicts instead of kisses, tasted blood, not lips, sought the clash of arms rather than the arm’s embrace, fitted to weapons hands which should have been weaving, desired not the couch but the kill.”
~Saxo Grammaticus, Gesta Danorum
Sten's commentary in DAO always reminds me of Saxo with the mention of weaving, couches, and kisses. It doesn't matter much if it's logical or not. It was reality. It is reality. And those who view sex or gender as black and white issue had better get used to being surprised.