I don't really want to read the article to find the answer, but I guess the question is: Are they really ignoring steps 1 and 2?
Is there any cited evidence that expounds upon the "warped mind" to show how pornography leads to terrorism? Or terroristic (is that a word?) behavior?

Or is the entire article similar to my favorite argument against broccoli?

(SPOILER)Everybody who eats broccoli eventually dies. Broccoli kills.