Aisha Clan-Clan is actually Bi-sexual...
She's just in the closest. Why? Well, since Ctarl-Ctarl's social structure seems to be completely meritocratic-based jobs, it seem that it doesn't matter what are their sexually is. It means that she's so focus on her talent and job that she might not know what is her sexually. The real Firecat did survive.
- Turns out her wrestler name has some truth to it, as she is impervious to fire. The heat broke her bonds and she was able to escape.
Melfina isn't actually naked inside her navigation tube
Rather, the fluid inside the tube renders any clothing invisible. We see her get in and out fully clothed in too short of a time to actually disrobe. Another possibility that Firecat survived.
Gene simply asked Fred to help get her safely out of the way. That way, she was out of harms way when the stadium collapsed.