Searching for empirical evidence while being stupid is a waste of time. One might as well just speculate being stupid and save the effort.
For those of us who have lived in the real world and learned about women we damn well know that women respond to one thing above all others: being taken care of by somebody who cares about them. Yes, good looking healthy and young are attractive visually to women more than ugly. And they can feel that attraction just by looking. But the attraction of a man who takes care of them and makes them feel loved and special and beautiful blows all that away. The study may profess to measure that but it obviously doesn't. The study only TALKS about that stuff, and women don't feel it unless they feel it. The ugliest guy is "cute" when she feels him doing that. If she doesn't know the guy and the morons doing the study just say he is caring and blah blah blah, she won't see him as cute. Duh!
Do you have any idea how many men have cherished specific women, just begging for the opportunity to care for them for life, and been rebuffed?
That may or may not be necessary, but it sure generally is not sufficient.