As a professional hypnotist for 15 years and with over 10,000 clients, I found the 'argument' to persuade the reader to believe that Obama uses hypnotic techniques was more hypnotic than any speech Barak has ever made.

Effective communication, including music, will by the nature of the human mind will be hypnotic in once sense or another.

Using visualizations in communication will enhance meaning and comprehension. To suggest that is a bad or scary thing is (to borrow a phrase from one of the best communicator's on mudcat)
"a pile of bull shit 10 feet high".