A thought on repentance and confession - you might have the right to call, but only the faithful would answer. A number of these moves presuppose that they are performed in the context of others of the faith. If the faith is far from universal, then many of these need to be reworked. Or maybe not, maybe it sets up situations where rights are routinely denied and maybe that's a good thing. Righteous indignation, and all.
I think that's a good tension for a Cleric to have in this Dark Age. Nothing should be universal in the Apocalypse except threats and danger, I think. Just because a Keep Liege has a Bishop around doesn't mean that good things will happen at all.
At the same time, I don't think any of the Rights in the game are Universal. I need not acknowledge the Keep Liege as a War Champion, so why should the Keep Liege care about being excommunicated? That should be why we play. The fact that you have to claim your Right, and I can choose to acknowledge it or not... that's great tension there :)
Of course, if Universality means "playable in the context of the game world", then I think it'd be a giant dick move on the MC's part to say, "You're a Bishop, but you have jack all to do because Catholicism sucks". Either it's in the world or not. I don't think it's necessary, but if a player wants to run organized clergy, it's a bad thing not to include it as a condition of the People (i.e. a Universal truth of the game world).
...
Organized superstition is a good thing! I wish there were more of it... both as a help to fight against the centrifugal tendencies of semi-civilized society, and a way to screw over the Keep Holder by using Canon law against the Rights of the Keep Liege.
Yes, we have the Bandit-Nobles... but there's also the Church, or the Blot gatherings of the Vikings, or whatnot. If the Dominus of the region must exert control over the peasantry, so should a Bishop over the congregation.
Religion isn't a natural state in itself, but a process of exerting control (and I say this as a Catholic)... I think that exertion should be part of a Dark Age, whether on behalf of our Roman Church or the Church of the Empire of Eagles or the Septons of Westeros or Neo-Paganist Asatru. Why not have those aspects of tension as well?