Very well written article. As a bisexual male I find it fairly easy to fall in love with a "person" as opposed to a gender, and a lot of what he said makes sense. Of course, I don't think a proctologist's exam is going to set ANY man's world aflame; be they gay or straight - in the same way I think most women will tell you that going in for their pap smear at the gynecologist certainly isn't a turn on. That's... well, that's silly.
Bioware's collected data seems to indicate, from what the company has said, that many, many people explore the "gay" romances in their games. I am assuming that at least some of the people who do so are heterosexual and able to get over the fact that in a fantasy computer game with dragons and Templars and magic, you're not exactly playing a carbon copy of yourself. Some people DO enjoy roleplaying heroes as close to themselves as possible but I'd wager that Hawke's physical prowess and build alone sets him quite a bit different from your average "Escapist" forum reader.
I've roleplayed since I was a little kid and I've had fun roleplaying as both genders even though I am 100% certain that I would never, ever want to be a woman. (I've been married to my wife for 11 years now and seeing what they have to go through isn't appealing for me in the slightest. I am so, so glad I was born a man...) - This doesn't mean that I haven't enjoyed roleplaying women in tabletop games. One of the most fun adventures I ever ran through at a convention was "The Terrible Tomb of Lum the Mad" where I played as a flirtatious, female bard. Did it make me question my gender identity? No. Did I have a lot of fun (and laughs) putting on the shoes (high heels?) of a woman for a roleplaying experience? Yeah, it was fun.
As I continue to notice more and more as I grow older, the people most secure in their gender identity and sexuality have no problem with gay themes or characters in games; it's the insecure people who perhaps question their own sexuality but are ashamed to admit it that have an issue with being exposed to anything that is not straight, male, and preferably objectifying of women.
Which is perhaps where this little study bears quite a lot of thought -
http://www.ncbi.nlm.nih.gov/pubmed/8772014
Basically, it's a government study (one of many) that shows homophobes are those people who are actually most aroused by gay porn. Heterosexual men who have no problem with gays (and are secure in their sexuality) don't really respond to gay porn. People who are violently anti-gay, however... they tend to get a bit of a chubby watching man-on-man action.
And it's pretty easy to figure out why.
Again, great post.