Intersting bit there, but I dont agree with that conclusions. It is, I think, an after effect of the Cants of Compulsion. She felt that Aurang's thoughts where her own, his desires her, and so when she remembers the incident it appears that his soul inhabited hers, whereas it was really just his memories and passions.
As for chorae, we know there is something more to them when Mimara wields then through the Judging Eye. She did something, as far as Akka knew, that was entirely impossible, i.e unique and unprecedented. Not something other's could accomplish - especially someone like Moenghus so deeply rooted in reality, and also not having the JE.