I was very perplexed by this truth sandwich aspect to their messages; truth mixed with social programing and hidden messages. I think it has to go back to the 'trail of bread crumbs' aspect of the old mystery schools and Rosicrucian influence in the elite societies today.
Mark Passio takes the time to reveal a great deal of the hidden content in the 3 Matrix Movies. After I discovered this aspect to life on Earth, I began watching movies with a different perspective seeing the hidden messages within the films.
For more information on hidden symbols and purpose check this post DISCLOSURE: DARPA Reveals Mass Mind Control Project using EM fields and Hidden symbols.