Just as one example, in a lot of posts and commentary I've seen, is that hooks are replacements for both HoCs and render props.
Admittedly, I haven't yet tried to do any actual development with hooks, but I can't even figure out how to solve the problem in the example in docs for HoCs[0].
Do you pass in a hook as a prop? That doesn't seem wise. A custom hook for each data source still has the same code duplication.
The docs talk a lot about how to build individual components using hooks, but very little about tying them together.