Perhaps. I had always taken the existence of spirits and the curses they can lay on their unfaithful descendants as mere superstition, but in this world, the rules may be different.

[lookin' at you over there, spirit-goat]

Either way. I expect ghost animals to be less of a burden than ghosts which chant murder at you all day and night. Whether we have to do something to send them to their rest or whatnot, I can't say.