There was an article posted that claimed what you’re saying. That’s why all the “average” faces in your link are super attractive. The main theory is that when most of your facial features are average, you will be able to have attractive kids with more people, because it would take relatively extreme features to move your “genes face” away from the average. So it’s advantageous in that way, and attractive as a result. Strange that you thought this up yourself when the article I mention and the one you linked made their rounds at the same time, related to each other, and were often referenced by the others comment section 🤓