Haven't seen the film but...
First, I didn't know that this movie was available (censored or not) outside France till now. I thought it was only for french market. And even in France, it's a minor movie, not so famous, and most french people have never heard about it.
The writers and directors of the movie are two women, ex-porn actresses (the main actress was also a french porn actress before) and, according to what I read in the press, they made this movie more like a parody of "Thelma and Louise", just made for fun.
Maybe they wanted to take revange in this movie with the machos world of porn industry where they used to work before.