shrug I haven't watched that video, nor do I share their apparent views that it needs to be a fantastical bimbo simulator, but if you're saying that there isn't a massive character design direction change from female characters looking feminine (I'm talking body-shape, facial structure, et cetera, not that they're "just tits with legs") to have what are essentially masculine features (especially with Sonya Blade as an example) that makes them look like dudes in wigs or as fugly as hell, then I don't know what to say other than you're blinder than Moleman without his glasses.
I use Sonya as a prime example because although she did look like a military stripper in the first reboot game, she still looked like a woman; the jawline, the facial structure like cheekbones and eyes, her body-shape (even exaggerated), et cetera -- the last game? She had a strong jawline and cheekbones not out of place on a dude pretending to be a woman, a body-shape that wasn't "athletic, trained woman" ala Sarah Connor but "dude pretending to be a woman to play in women's sports". Basically, her design was purposefully done so that it shredded any impression of femininity in her design language.
And it's not just in Mortal Kombat but a general trend/agenda across recent Western games, too; again, feminine and attractive doesn't equate bimbo or sexy fan-service.