Metrics & web analytics: average time for page views

Was reading this article on average time spent on page views for various news sites. Average time spent does not seem like a very meaningful metric to me. Wouldn’t it be more interesting to see a plot of all the times spent on a page? So that if there is clustering around 1 or 2 seconds and then a bunch of viewers who read a page for 2 minutes, that pattern will be clear.

I don’t even know the correct statistics term for this, but it seems obvious that the average is not telling enough of the story. How could we conclude anything from that one number?