Well, I am kind of glad this thread has been revived, mainly because of impeccable timing.
One of the things I do for fun are editorials about video games, in particular a series about discussing character arcs and character growth.
I just recently posted an article I wrote about Dorian, and it mostly discusses how his own pride is the main driving force of his character, right down to how it controls his convictions and beliefs, which parallels his own father in a few ways too.
Here is the article if you want to check it out, let me know what you guys think though.
As you said, I do not believe that Dorian's sexuality defines any of his traits. But that doesn't change the fact that those traits DO exist in him, and are stereotypical traits of a gay man in our world. And above that, even if his story about how his father disapproving his sexuality was only the tip of the iceberg, only a small piece of something big, it's still the same old story that is thrown around the LGBT media: being gay is shameful and wrong.
So you got a bunch of really irritating gay stereotypes on a gay character, so it's NO WONDER people criticize him. Well, I criticize him, I rarely see any criticism on his sexuality or how his story was told, only from more hardcore Dragon Age fans who are in it for more than just to bang the companions.
I'd also like to notice that I think Dorian's fans are the ones reducing him to nothing but a gay best friend and a source of smut. I RARELY see anyone talk about his involvement with Tevinter, or his story outside of the disapproval of his sexuality. It's all just oh look at this gay character, doing gay things and being a gay best friend and looking fabulous. And when the '' FANS '' don't really have anything else to say about a character except that they are hot, snarky and gay, you know you've created a character whose story wasn't necessarily written the best way possible.
I'm happy that in this forum, at least, people talk about Dorian outside of HEHE GAYYY SO CUUTEEE AND HAWT!!!
But yeah, I don't think Dorian was the best possible solution for the FIRST gay character. I can, at least, hope that whatever BW does next with it's gay male companion, is the exact opposite of what Dorian is. After that, I can most definitely enjoy Dorian a bit more, knowing that BW knows how to write a gay man without falling into stereotypes, even if it was only a coincidence, accident or whatnot.