>>149937780
NTA but my hypothesis
1. On I suppose a primal level ass and hips are recognized as good childbearing indicators while breast are more sexual maturity indicators.
2.Depends on where you live and what's considered a big ass. Japan for example are big on tits. Oppai, Paizuri etc. While places like south america (Brazil, Columbia) have dances and culture devoted to ass and hip shaking.
3. Artists are trend chasers for better and worse. If DC made a power girl move and casted an actually very large breasted woman to play her pg art would explode just like what happened with overwatch and marvel rivals. Ass is for the most part in style right now it seems.