And, meanwhile, in an office on Callisto, a man is reading a deeply disturbing report from one of his subordinates.
He has to consider, of course, the possibility that Lopez has lost his mind. He doesn't actually consider it for very long. There's video evidence. There's biometric evidence of the miraculous healing. All of it fakeable, especially since he's receiving it as an after-action report rather than live during the battle, but that's not something a man suffering immersive hallucinations would probably think to do. No, the hard question here is not whether to relieve Lopez of command because he's insane. The hard question is whether to kill everyone on the Tachi with as little warning as he can possibly give them because they've all been compromised by an alien superintelligence, because that, regardless of the intentions this 'Iomedae' has towards humanity, does appear to be the approximate shape of the thing happening.
In the end, he doesn't do it, because it wouldn't work. It might have worked, if they had blown Phoebe to plasma the moment they discovered the blue goo, and perhaps they should have done that, but by the time the alien god can manifest an entire human with magical healing powers, there's really not much they can do but be grateful it apparently wants to talk.