Your opinion is duly noted Qyasogk. It still doesn't change my stance on things.
I feel that there should be no overlap between islands when it comes to religion, plain and simple. That has nothing to do with limiting how people play their characters. All it does is limit the spread of a religion that is founded on one island to another, which in my opinion is against the spirit of even having distinct realms.
I imagine Sanguis Astroism and it's beliefs being relocated to say, EI or SI, and the idea of it makes me ill. Maybe if a religion were to entirely take over one island with no competition whatsoever, then I would be more accepting of it spreading outside of it's physical boundaries (being the island itself).
Just taking the ideas that someone else put together ages ago and trying to apply that to a brand new realm on a recently resurfaced island: lazy.
(this is entirely my opinion, and if it bothers people: I don't care. The religion aspect of battlemaster is one of my absolute least favourite features in the entire game. In all of my years of playing BM, I have only had two good experiences with the religion game. Otherwise, it is just another tool for popularity contests: which we already have ample amounts of.)