That is funny, in a way, because that is exactly the behaviour described by Susan Cain in a society that over estimate the value of bold assertion from extrovert character trait. So those misinformed are making statement on their own mental the assumption that conceding their ignorance will make them look weak. At least that is my reading.
Much of the segment is spent illustrating that people do care about the dynamics of the issue, but that they don't understand the details.