People in the comment seems to not understand that it doesn’t mean average on the “scale of beauty/attractiveness”. But averaged features. Like if you merge all nose shapes of a million person you get this nose, ect.
It was tested already several years ago that people tend to like faces made by merging a lot of faces together and “averaging” them. Most of the time rating them more attractive than the individual faces used.
I don’t find the source anymore… I’ll check better later.