I don't really think that "context" and "composition" are the same thing. They are designed for different purpose. And IMHO, i don't think you can ever use "composition" without `react.cloneElement` because there're always `props` you'd like each `grandChild` to be different. Otherwise what's the point of composition.

In my opinion, this article is very confusing, it tries to blend two entirely different concept into something which the author think sharing similarities.

Please study "composition" and "context" in different stream. They are both very very powerful, but just not similar powerful at all.