Oh, I thought you meant that the hooks would be called there, which was one of the many alternative proposals made after hooks were announced.

In any case, it still wouldn't work because hooks are composable. You can create your own custom hooks outside of components which can be used as if it was one of the primitive hooks. That's not possible if the primitive hooks can't be accessed outside the component scope, unless they're passed in as parameters every time the custom hook is called (and that would be a right pain in the backside).