I think this happens a lot when it comes to interpreting kata--that is, people tend to look at the final position of a technique to explain its application. It's almost as if they are looking at still photographs in a book. Where does the fault lie? I'm actually not sure one can assign blame in this case. Karate is a movement art. In order to learn it, we follow the instructor, moving from technique to technique, stopping at the end of each until we begin the next. But we need to keep in mind that what is really important is often what happens between techniques--how we get from one position to the next.
Which all goes to suggest that nothing is really hidden...but things are not always what they seem.