Why do we need an explicit throwaway line?
That young woman was a victim, both of the Krill and of Oren. I find Oren's actions towards her despicable. Do you think that he'd have taken her with him if he hadn't been able to use her as a weapon? I don't think so. She was a bloody time bomb as well and he didn't seem to care; I don't imagine he'd have kept her around or helped her after he'd blown up as many Krill ships as he could.
The Union has shown itself to have some compassion and since that woman is toxic to other beings, they'd send her home to be with her people. The Union probably told the Krill that she was in the shuttle craft with Oren.
I'm quite happy that not everything is explicit and some things are left to our imagination, it would get boring otherwise.
Someone also mentioned throwaway lines and consequences for Isaac. Did you see him at the ceremony? He wasn't standing with those to whom he'd been closest and there was a great deal of space around him and the rest of the crowd. It's a subtle indication that he is alone, totally. And that is the consequence and quite possibly a seed planted for future episodes/storylines.
Seth McFarlane has stated in interviews that he's tired of the dark (emotionally and literally) and distopian outlook in most television today. He wants hope and fun and brightness in his show; that should also serve as a sort of blanket explanation for some of the questions being asked.
Just my own opinion of course, no criticism of anyone intended.