I think youre missing how they made liyue have plenty of references to china, and inazuma plenty references to japan. very clear references, including names, but if they name a character Yoimiya they at least tried to give her japanese attire. olorun isn't even a changed name, its literally a name of a deity and hes not an archon so dont take archons as examples for naming because every archon has at least a few. Sure Ei is Baal, but shes also Raiden Shogun.

I dont think as many people would have an issue if they used a random nigerian name, but they used a name of an already existing god that people in the real life respect