I actually think it does a good job at giving a sense of scale for a petabyte in terms of video hours. "13 years of HD video" does a lot more for me than "1 million gigabytes," which was basically my frame of reference before. However that's only if you can actually interpret what it's trying to say.
Yeah my trouble was that they referenced "how much is a petabyte" and "videos nonstop for 13 years" but failed to say "one petabyte of videos related to how big one petabyte is would take 13 years to watch".
