So here's a refresher course on astroist faiths then...
Sanguis Astroism spread across northeast Dwilight quickly, then across to Darfix in the east. Gained a foothold in Lurias, D'hara, and Terran as well. Niselur rebelled against the northern SA federation followed by the western monster invasion and we obviously only have the east left.
Well before the monster invasion, Occidental Astroism was founded in Aurvandil by Allison Kabrinski (mother of now Alaster Kabrinski) a very prominent/controversial SAer (Old Morek, Kabrinskia and on). This was eventually declared heresy by Prophet Mathurin. Never caught on and fizzled out, ending when Allison claimed it was all a ruse to get into Mendicant's (aurvandil's ruler) good graces and Allison was executed/poisoned/suicided.
So shortly the monster invasion, Jonsu, far more controversial and with less heritage, took control of SA. This caused all sorts of drama (not just ic unfortunately), one of which was Seoras proclaiming Ecclesial Sanguiastroism to follow Mathurin over Jonsu with a Malus Solari/Rabisu Daycryn bent. For context, Jonsu had already been declared an enemy of the lurian empire while Seoras was reigning emperor and Jonsu had profusely written against Mathurin.
The relations between SA and ESA were sour (declared evil) while Jonsu was in SA but after she was kicked out, they went to variant faiths. Alaster Kabrinski joined Luria for a time though and they weren't exactly compatible, so there's probably some underlying tension with how events shook out post-Jonsu, but other elders have been more positive. Basically, SA reformed the Church into more voting positions while ESA stayed more orthodox in its structure, even reverting to some older SA elements. SA involves non-priests in higher level decisions than ESA which puts priests above others, especially in theological discussions, to try and simplify life for the congregants and not deluge them in theological debates.
As far as wiki pages go, when I founded ESA, I mostly copied SA's wiki over and edited it a bit to mark out the key differences. It was done immediately at the time of Jonsu's hold over SA so it probably is more hostile in wording. SA's wiki hasn't been touched much for awhile other than perhaps the ranks updated, some theological bit stuffed into a subpage etc.
Hope that helps.
