I think you're giving them entirely too much credit. I am all too familiar with the smart morons of which you speak...
These people, however, are behaving like a group of excited monkeys at a zoo. No intellect to speak of. Their anger turned into glee when they successfully broke up the presentation, not to mention the auditorium. A person with academic intelligence would have understood that this sort of acting-out does not create sympathy or support for the cause.
If they did have brain cell one between them, they would chanted their idiocy in English, so that the powers-that-be would better understand them.