I'm not assuming that, I'm observing that the review doesn't reference any of them, and wondering why (just like when we'd read an article about how some super-successful startup founder owes his success to broccoli, we'd wonder what happened to all the broccoli-eaters who didn't end up as particularly successful).

When you're recommending specific radical reform, it helps your argument to analyse specific implementation of said reform, rather than merely extrapolating from a cool research article and sprinkling a few historical anecdotes.