Over Our Heads?

CNN has a report about the President's speech in which the analyst says the President's speech probably went over the head of most of the audience. Why? It was written at the 10th grade level.

Tuesday night's speech from the Oval Office of the White House was written to a 9.8 grade level, said Paul J.J. Payack, president of Global Language Monitor.

What would have worked better? Obviously a