I don’t see the similarity. Since hooks aren’t actually passed to, or injected into components, there’s no way to evaluate the same hooks in different ways.

I can’t have a hook that talks to a real API in one environment but to a fake one in another. I’d have to use Jest style mocking, which is more like monkey patching.

From the point of view of a React end user, there’s also no list of effects that I can access. I can’t see which effects or hooks a component carries around, which ones weren’t yet evaluated, and so on.