The slave revolt in Haiti put great fear into the incumbent governments of the time (France and U.S. included), and that fear drove economic revenge and isolation for many decades after the revolt -- even centuries, as you point out.

It's always worth remembering when reading an article pointing out the problems of Haiti, as if that island just happens to be one of the poorest places in the Western hemisphere, e.g. due to bad government in the Duvalier years.