“...a precedence in having a religion change one of its core tenets...”
Mormonism was still a relatively new sect in 1890. And some did not and still do not go along with the “change”. Mohammad’s zip wads have been around since the 600s so things are more in-bedded.
I don’t disagree. Maybe its an Arabic thing. I know many Sengalese muslims that do not adhere to the more draconian practices of Islam. Yeah, they are practicing, in so much as they pray five times a day and don’t eat pork, but their attitude is vastly different from their practicing Arab co-religionists.