The Mathematica system makes some beautiful, informative graphs, and presumably users can make those graphs with a minimum of fuss and bother. It's technically very nice.
Yet, in the entire blog post, is there one insight that wasn't a priori obvious? Maybe the bits about migration.
I don't see the "art and science" in this analysis, I see "stamp collecting" (http://en.wikiquote.org/wiki/Ernest_Rutherford)