I had the same thought. I also thought meatball ghost was gonna be ghost/water type because of the rain, but got listed as ghost/psychic instead. What next, is the Oiren gonna be ghost/flying, because of her butterflies, instead of ghost/fire?
Wait a minute, something doesn't add up. The sun shikigami was male and the moon shikigami was female, but Tsukuyomi is a moon God and Amaterasu is a sun Goddess?
I think Yayoi knows about fake priest-san's info thanks to the notes the info guy translated from the book. As for the Katashiro, I can't recall all the details from the graduate house chapter, but the curse is already inflicted on the god and isn't going away until the source of the curse is...
Now that I understand that the god is a bunrei, I have a new prediction. Every time Yayoi captures a ghost she gave them a choice between being captured or dying, so I think the god will actually choose death not only to spite Yayoi but to paint a target on her that his main body will follow up...