As far as I can tell this draws heavily from themes of Shakespearean tragedy. Part of the reason the storytelling feels "fresh" (at least to me). It's not different, we just don't see it enough any more.
I imagine it's a multi-faith chapel and that specific goddess is having problems?
The bigger plot hole is why the adventurer bracelet, despite having fast travel and other convenient (potentially revolutionary) features, fell out of style. Falling out of style implies old lady had a thriving...
Fun fact, at least when it comes to 3d models (VRChat, MMD, etc), anime girls are T-Rexes. They have short arms and long legs. The proportions are quite different to actual human proportions.