I wouldn't be so quick to say that. Jonah is still young, prone to feelings instead of reason. Koko could always end up doing something that could make him hate her as much as he hates her brother. Unlikely, yes, but impossible, no. As cold and as rational as he tends to act, we've seen him explode a few times already.

Koko is unpredictable, and there is a lot more to the plan with the satellites that she and Dr. Minami have been working on than they are letting on. Something that has an awful lot of people curious and nervous. Something the two of them are keeping to themselves, not telling anyone else, in HCLI or even her core team.