My emphasis was on Motherx. If her daughter was to gain improved appearance perhaps her best chance would be for Motherx to choose an attractive mate. If Fatherx does the choosing I didn't think there was much chance of the daughter's appearance improving.
I'm still not seeing it. Females as well as males vary in attractiveness; males as well as females can exercise choice. And I don't see why you think that that should be different for earlier humans or pre-humans.