Why isn't the Mesquite location listed on Panchos' website?

I've been there many times. I know they're franchises. Just wondering why, on the Pancho's website that THIS PAGE has a link to, they don't have this location. They only list 4 places.

I think each one is independent. I live close to the one in Mesquite and have been there several times. It's pretty good. There's plenty of room inside and of course lots of food.