By "non-scripted", I guess she means as if sex happened expontaneously, not involving any payment, model releases or all the artificial situations that puts a couple to fuck in front of a camera.
To me, ALL porn is "scripted", even when there´s no script. All this shit of "guy goes out in the street with a camera - finds girl he never saw before - fucks girl" got tired on me even when Stagliano was the only one doing that.
Sex on film is NOTHING like sex in real life, people.