Terrorists: The Smartest Marketers?

I listened to an NBC broadcaster make the case that terrorists are the best marketers. Looking at some of their tactics, it is hard to disagree.
ISIS publishes a polished printed propaganda magazine called DABIQ. It's glossy pictures lure in young men,
ISIS excels in video production. Who among us produces 900 videos per MONTH? Try to outdo that production schedule!
They use social media voraciously, especially Twitter, to spread their messages across the boundry-less Internet.
They are excellent computer scientists. They use encryption techniques that include disappearing content.
Young disillusioned men from all over the world are answering the call.
WE MUST ASK WHY!