What's interesting about that distribution is that it's pretty much the same across the general population. Teens don't have a magical insight into technology any more than boomers do. The willingness to learn and understand computers is not age specific.
These students don't know what they don't know, and think they know a lot that is, in fact, wrong (just like those in that video). This is a Zone of Proximal Development issue. Their ignorance is so great that they can't even begin to realize how little they actually know. Their knowledge is akin to belief.
Until we start taking digital literacy seriously and begin to develop the necessary skills in a coherent manner throughout school, we're throwing students into the digital sea with very unfair limitations, often based on family circumstance and technology access.