I read the article and found it interesting. I agree with many of the premises regarding human suggestibility--- I am one who always liked to study charismatic people. I wondered what made them tick. One common theme I found was the same thing the article stated in various ways: playing on one's emotions. I call it the "feel good" theorem. People allow themselves to be brainwashed because the end results often leave them feeling good, or as an escape from a perceived problem.
For example, some of the "hell fire" tactics used by evangelists scare the person into submission. However, the "feel good" part is the escape in Jesus Christ. I agree, that the person could have been bamboozled into a false danger, and it was believed, but their own "fell good" part of their personality then accepts anything as the remedy. It could be candy, ice cream or cookies (metaphoically speaking)--- they all taste good.
One word of caution--- as many true points that this article brought up, it becomes a mass-suggestion unto itself when using a scientifically sound premise, it can potentially manipulate one into conspiracy theories idealogies and scare us all.