I getit... Everyone has their likes and dislikes. Not all the women have outrageous hentai milf bodies or breasts bigger than their heads.
We aimed to cater to all types: fulfilling as many kinks as possible, and in doing so included a few of those big boobed bimbos. Besides them, we also included more normal proportioned girl-next-door types, petite sisterly-types, beach babes who have nothing to fill their bikini with, big booty bombshells with itty bittys... a couple of mothers who haven't exercised in decades, and various other types of bodies.
Just look at the characters in the background of this page... Emily on the left here (in the orange outfit)? She's got B-cups. Mary (the short nun) has A-cups, and even the evil doc on the right has moderately sized C-cups/small D-cups.
Yes, there are some top-heavy beauties and milfs (like Pamela on the far right), but with 60 characters, the cast of women are not all top-heavy.
On a personal note, I agree with you that the fetish for massive mammaries is way overblown, but... boys will be boys. There's room for everyone, even if one woman's bra may take up the space of three people...
;)