They aren't being compared, or aren't you aware that that BioWare is owned by EA?
I'm not following your logic. EA is a publisher and they supply BioWare with money for their projects. Other than that, they really have no say in BioWare's creative direction whatsoever. BioWare chose to implement in the Extended Cut. BioWare chooses what kinds of DLC it creates. EA has nothing to do with it.
1) BioWare is great at a lot of things but fashion isn't one of them. I believe they didn't have anyone on the team with a good fashion sense (or didn't ask the opinion of such a person) to look at the hair and ballroom outfit and go "you might want to rethink this." I believe the lacking quality of the Qunari hair comes from the artist not knowing what people who take a lot of pride in their appearance would have and the assumption that no one would care and just focus on the horns. (ex the choice to give us the "mudbun" which looks like something a 75 year old schoolmarm from the 1800's would wear instead of Josephine's bun or Elthina's bun or Anora's cinnamon buns)
2) By the time we were shown the CC it was far too late to change anything.
3) YOU were the one who brought up EA and how they want to make the maximum profit and would find something like this worthless, etc...EA did right by the fans for TS4 and it was a very similar scenario to this.
If you like the Qunari hair, great! Tell us and BioWare what you like about it. If not, tell us what you would rather have or how it could have been done differently, but don't just sit here and tell us that we're wrong. All of your arguments could be applied to the reused environments in DA2 "BioWare knows how to make a game, it's just technical limitations that kept them from making more than one dungeon" or "do you know how hard it is to make a map? You can't expect BioWare to make unique maps, they chose to focus on important things like anime-esque combat animations and sky portals for enemies to materialize out of" etc...the hair is bad, the Qunari hair is horrible. It's not only poorly textured, but the only styles to choose from are frumpy, manly, and ugly. This will deter a lot of us from playing Qunari and that's not a good thing. You spend countless hours implementing a new race, animating it, making armor and special face paint for it, making several varieties of horns, adding race specific dialogue, etc...and then when it comes to hair (the single most noticeable thing about a person) it's like they went "meh, I don't feel like working on this anymore" and just didn't even care.
Well as I said before, BioWare doesn't want qunari to have the same hairstyles as other races clearly. None of your examples of "proper hair" are qunari women. It's rather interesting, but feedback from the community rarely changes games during development, especially later in the cycle. Feedback is really for something for BioWare to consider in the future, but not for that particular product. Swimming and pools, as you suggested, are more of a gameplay feature and add more functionality to the game. More hair options are purely cosmetic. BioWare is likely to do something that provides more functionality to the game versus something that is purely cosmetic. The most infamous example of DLC that was purely cosmetic was the horse armor DLC for Oblivion, and everybody remembers how well that was received.
My argument for DA2 would have actually been "BioWare was experimenting with a new kind of storytelling allowing the player to significantly impact the same location over a period of ten years and see it evolve." Obviously BioWare had less than ideal results, but that was their philosophy and it was an interesting idea worth trying at the time. We can speculate why BioWare failed to provide better and more hair options, instead of the "horrible" ones in the game for qunari. It's difficult to really know where it all went wrong. You'll just have to hope with future DA games that this is something that is resolved early.