Kinect UFC Trainer: For Guys... and Girls?

Lately I've been using the Kinect game called UFC Personal Trainer. Now I've heard that UFC has been marketed toward women as well as men. And there is a girl exercising on the cover of my box:

However, I wonder why there are no girl trainers? I understand that the three trainers: Mark DellaGrotte, Greg Jackson, or Javier Mendez are leading mixed martial arts (MMA) training experts. Sure, great! But I'm sure the game designers could have found a female leading mixed martial arts trainer.

I would find myself more able to immerse myself in the game if my on-screen trainer were of the same gender. The trainers encourage you with phrases and complete the exercises alongside you. It's more motivating and fun to exercise with a friend than a guy.

~Signed, A girl

*I have no real problem with this game, it's great for exercising!