I dont see it as conflicting that the Psukari are affected by chorae in the same way as other sorcerers. The difference between thaumaturgy and sorcery is the source of where the magic comes from, specifically, thaumaturgy coming from a god of some kind, while sorcery does not. However, in both instances, both are still 'using' 'magic', and the chorae are decidedly an anti-magic force.
This sparked a thought on chorae that I haven't seen brought up. Somewhere its mentioned that the chorae is kind of a semantic foil to sorcery, in that it creates and/or unravels the paradox that sorcery creates. I find it odd that the chorae should work on a magic that is based on emotion, which is illogical and language-less, as it does with sorcery, which in all forms is a logic/language based phenomenon.