That superhero movie fallacy again

So I can't argue with the writer's thoughts in this great article on Pitch Perfect 2's success and how Hollywood will botch understanding the movie's success, but I wish opinion writers would stop with the "Hollywood is only making superhero movies" fallacy. They do, certainly, get the most press, that is inarguable, but I ran the numbers in an article for Home for Wayward Geeks earlier this year--superhero flicks were 4% of the movies produced in 2014 and less than 3% of the movies scheduled in 2015.

I also saw the Avengers on opening weekend and sat in front of a row, an entire row, of 30-something year old women who spent the entire movie talking about the PLOT. So while yeah, the likelihood Hollywood will misuse the amazing Anna Kendrick and Elizabeth Banks, saying "maybe it’s time to stop catering almost exclusively to the supposed gravy-train demographic of young male movie-goers" in reference to superhero films is kind of ignoring the fact that the audience for those movies aren't, well, all young male movie-goers anymore.

Why is it people who are writing for big-name publications are convinced only little boys like superhero stories? It's like they stopped doing research in 1985 sometimes...