As if removing it wouldn't be an improvement. MBFC themselves admit it's nothing more than pseudoscience. The fact anyone actually takes it seriously is laughable, especially considering some of the sources they consider "highly factual"
A comment there made a very good point. If they only had the American left/right terminology that could be fine but annoying, but they also say left/right lean lowers a site's score. So they're giving websites that would be properly described as center right by the rest of the world artificially higher scores.