Perhaps thats a good thing. Showing two women bloodying each other up may not be the best way to attract new fans to the sport, right or wrong.
This isn't the 1950s. The world is ready for female MMA. And it has been for some time. The sight of two women battering one another wouldn't be its undoing. If anything, people not taking women and sports seriously is what will slow its progression. The WNBA has done serious damage in that regard.