what about Spirited Away?
4K makes cheaply animated content look cheap. Sometimes that's ok, other times viewers want more.
Another example outside anime is Fantasia 2000 on Disney+. That kind of content requires high fidelity. Disney+ looks and sounds bad and it harms the content.
I think it's fantastic Netflix is doing what they can to make fidelity a competitive advantage for content creators, especially the ones that can't spend as much on it.