We chat about videogames and videogame accessories.

I'd assume they're idiots instead of bigots, or they wouldn't have put the relationship in there in the first place, you know?

Like, broseph, that's kind of the point. Flagrant, hateful bigotry isn't the only manifestation of prejudices, preconceptions, and stereotypes. Also damaging and much harder to combat are the ways those things affect people's beliefs and how they treat other people, and it's entirely possible to perpetuate negativity while trying to be positive if you're not thinking critically about it. When the vast majority of literature about gay characters (especially women) produced by straight creators (especially men) has their relationships be "tragic" or "forbidden" or otherwise inferior to straight relationships or options, there's a problem; when those stories go on to portray or imply lesbians in general as selfish and desperate, there's a serious problem.

Issues with media aren't always (or even, in my estimation, usually) created intentionally. Those issues are usually reflections of the dangerous habits and beliefs society as a whole has on the creators and need to be addressed in that context rather than whether someone intended harm or not.