Pale Carnations is porn, and so revolves around sexual gratification; Eyes Wide Shut, and other non-pornographic fiction does not center on sexual gratifying the viewer/reader. If someone finds a particular fetish in a porn game to be a turn-off, it's perfectly understandable that they would not want to play it. For the same reason a straight man would likely have no interest in playing a gay porn game, but would potentially have no issue in watching a movie that featured a gay couple.
Personally, I don't care about the sharing so long as it's optional.