It'd be nicer still to see all the heathens convert to SA, and have us all, even if for only a single moment, get the chance to experience an actual medieval game where we all share a common faith and the religious leaders wield power in a fickle, arbitrary, and self-serving fashion.
Earth was never 100% catholic (nor even Europe, for that matter), and as such I see no need for Dwilight to be 100% astroist.