Comment by pwagland
The author of the article freely admits that `std::function<>` is more flexible. He still prefers this solution, as it is easier for him to reason about. This is covered in the "Fringe Benefits" part of the document.
The author of the article freely admits that `std::function<>` is more flexible. He still prefers this solution, as it is easier for him to reason about. This is covered in the "Fringe Benefits" part of the document.