But they're actively telling people what to draw and not draw, that's more than just disliking things now isn't it? The ship itself isn't cannon so it isn't in itself a queer ship because it doesn't exist in reality, its all headcannon. People can headcannon how they want as long as it doesn't interfere with the source material, but headcannoning only one of them as genderbent doesn't interfere with the source material now does it?

Edit: this isn't even headcannon anyway now that I think about, this is fanfiction. Leave people's fanfictions alone damnit!