If you have got the article referred to as a NASA report you will notice one thing that the person learning the photoreading technique (the test subject) was also the the 'scientist' conducting the experiment. Also in scientific terms one test does not provide conclusive evidence.
Paraliminal tapes don't help you improve your reading speed. The Photoreading whole mind system is about a different method of reading.
If you want to conduct a fair test yourself you can order the course and try it and if it doesn't work for you take up the money back guarantee.
Alex