Yeah it was another Amazon (well, an outsider that was welcomed in and given Amazon abilities) that turned bad and set off a virus that only affects men. So all the men were either sick or dying. The whole episode has some pretty good back and forth dialogue. And there were definitely sapphic vibes between the evil Amazon and her right hand lady as well.

Watched it again recently and it seems like it features and pushes all of the female heroes at least just as much as the male heroes. Although I find them pretty good with that over all when it comes to team up stuff.

Personally, I'm not too sure how to feel about Bruce Timm's thing for Bruce and Barbara getting together. As far as I know, before DC decided that they preferred shipping Nightwing with Batgirl instead of Starfire, Barbara was actually closer to Bruce's age and was a kinda love interest. And I'm guessing that's the dynamic that Bruce Timm grew up with. So as gross or inappropriate as it was, he was probably just trying to tell the stories that he daydreamed about back in the day. It definitely didn't work though.