I seem to remember reading that as well Mr Light.
and yes, studios do follow the money. As long as people pay to see shoot 'em ups and action hero type movies, where females are usually NOT in the lead, that is where the money is going to go.
Problem with the movies and female leads, is you usually get romantic comedies that all follow the same crappy formula: man and woman meet/fall in love; he has a "past"/screws up/ wrongs her/ etc., then he apologizes and they live happily ever after. Being a woman, I get tired of the "chick flicks." I actually prefer the action/ shoot em ups.
But a good movie is a good movie whether a female or male is in the lead. I don't go see movies based on only the gender in the movie....the script, the acting, the direction, etc all have to be good enough for me.