For the little it's worth, I interpreted the joke as being at the expense of that attitude. In regards to the rest of your post, I tend to gravitate towards titles (both yuri and hetero) with female characters who express their sexual desire. As a het guy, I can't say that I relate to your specific concerns, but I do understand what you're saying and generally agree. For me, it's that characters like that speak to my experiences with women, both friends, and partners, and feel more realistic. In my experience, at least, women are just as horny as men, there are just more potential repercussions for them talking about it.