The only reason women tend not to have as much technique in MMA (generally speaking) is because there are so few of them because the popularity of WMMA has never been where male MMA is. There was a time in the past when male MMA had its fair share of sluggers with little to no technique on the ground, etc. Women can be just as technical as men, but if there are fewer women training and they aren't training with the best in the game (currently men), then they are going to be playing catch up. As far as raw talent, the jury is still out on that one. The brains of men and women are slightly different, and men tend to have better spacial intelligence, etc, however that doesn't mean you can't learn the techniques just as well because that comes from practice.
Also, the relative effectiveness of techniques can very well change based on differing body structures. For women, since they have about half the upper body strength of a male but two thirds the lower body strength, kicking techniques will be relatively more powerful than punches as compared to men. The same is true of Rousey's arm bars, for instance. They won't be as potent against men because their upper body strength enables them to escape more easily. So, WMMA is a different game, really, and that, for me, makes it a rather nice addition to the MMA scene.
Also, a good fight is one that is well fought and contested between relatively equal opponents who have enough skill to be dangerous to one another, etc. Just having better technique does not always translate into a better fight. Otherwise, why watch any fights except championship bouts, etc? Or top ten level fights, etc... Such fights can and often do pale in comparison to under card fights! And for the people talking about going to a bar to see a drunken brawl: you are talking out of your ass. The typical bar brawler has zero technique. Give the women some credit, you ignorant fucks.