I agree Jude. It's a way to dismiss or diminish the important, undeniably crucial factor of their being a gay couple, because it still brings up all the discomfort and denial that people have about same-sex eroticism and love. So they dismiss it with the "it just so happens to be" comments. At the same time, if that makes more people watch it, and then come to change their minds about what it means to be gay, then so be it. The definitive article/review about that is of course, the NY Review of Books one by (I think?) David Mendelsohn, "An Affair to Remember." Correct me if I am wrong, someone.