Yes, Kane has openly been a lesbian since 2006. The response to that was mixed both inside and outside of the comic world. There are people in the comic world who care and have different opinions on this stuff.
People will make less of a whup for female characters because of the history and present day significance of most female characters. Male characters, on the other hand, are more abundant and their roles in comic books and video games match the fact that the comic and video game worlds are male dominated. I was almost always the only girl/woman in comic book stores and video game stores and sometimes the men in the stores tried to direct me to the "female comic books" and "female video games." No thanks. Therefore, male characters being openly gay gets a different response and people particularly respond if the industry is trying to make the more popular characters openly gay. People are fine with a couple of "tokens" here and there as long as there aren't more than a couple of openly gay characters and their favorite supermasculine male characters are not openly gay.
That's why this is a topic that has people talking both inside and outside the comic world.

Afterall, the comic book companies and consumers are the ones who made most of these announcements and continued most of these discussions. Nonconsumers and the general public are not initiating most of this attention.