I agree with many points of the article and, frankly, all of the responses. I will not belabor those issues, but I will add this:
As a published author of M/M fiction (this term is direct from the publisher's website), I can say with confidence and experience that the "unrealistic" "happy ever after" "smoking hot sex" "romantic" story is required if you want to be published in that industry. Obviously there are existing markets for gay fiction/gay literature, and I'm not speaking to those here, since it seems to me the original article is not focusing on them either.
It would make me incredibly happy to be able to present a manuscript to my editor into which I haven't had to shoehorn the above prerequisites. I could do it, but I'm sure I would get a return email from the publisher with a LMAO emoji, and "No, really, what have you got for me?" in the subject line.
It's a business. So you provide the consumer of your product what they want and expect. I think it's an important point.
Thanks for the thought-provoking post.