The problem is that the original formulation was "most people" are unaware of being unskilled, but by now the name is used to mean "some group of people" is unaware of being unskilled. In that sense the article confirms that “a small number are", 5-6%, and therefore the effect exists in the colloquial sense but not in the scientific sense.
Mentioning the Dunning-Krueger effect incorrectly is wonderfully meta...
Mentioning the Dunning-Krueger effect incorrectly is wonderfully meta...