Sure, because BS on user interface is more important than logic, automata theory, and complexity. If you don't like the Science in Computer Science you can always go to the Humanities side of the campus and engage in intellectual circle jerks with a buch of self-important morons.
You can of course perform experiments to see whether the author is correct. Those sorts of social experiments should also be part of a computing degree.
No, they shouldn't. They should be part of a sociology, communications, or (once the field starts having its own departments) HCI degree. You might think case studies of social experiments are important, and I might even agree, but they're not computer science (or "computing").
Cognitive science departments (at universities that have them) generally provide wonderful coverage of HCI topics, though some CS/EECS/CE departments do as well.
Sure - my point was that you can't really get a degree in HCI yet. But once you can, they'll include case studies of the referred to social experiments.