It sounds like the author is suggesting dynamic web pages built by Watson that would answer questions (summarise court cases etc). The underlying problem is, where does all this data come from? It sounds like Watson would intepret multiple data points from around the web to compile the information. How can they say this information is correct? Google at least points you in the direction of the information then you make an informed decision yourself if it is correct.
This sounds like something we already have, we have Google and Wolfram Alpha. Problem sorted.