If I organize a riot involving thousands of people that I manage to incite into killing people, and I claim my reason is that I heard that some guy is Glasgow made fun of the American soccer team over beer... that guy is Glasgow is not the real reason. It doesn't even qualify as a metaphorical fig leaf, it's just a lie. When the excuse is this tiny, you shouldn't even give it the time of day.
Yeah so the NYT says an Israeli-American named Sam Bacile raises funds and directs an anti-Islam movie and posts the trailer (http://www.youtube.com/watch?v=qmodVun16Q4&feature=youtu...) on July 2. The first Arabic comments are from 2 months ago. 11k views and 2 months later protests erupt at the American embassy in Cairo and consulate in Benghazi.
I don't know if you're defending the actions of these people (I can hardly imagine), but I don't understand why people still defend Islamic protests at ALL. Back when that Dutch cartoonist drew an offensive picture of Mohammed, Christians throughout the Middle East and Africa were being killed, churches burned.
The entire region is laced with (or at least completely tolerant of) hateful, backwards savages. These "you made fun of me" protests are a way to stir up hatred and Anti-Western sentiment, and maybe get to kill a few non-believers.