SolarWall Flash Presentation (on Solar Air Heating) - Why is this not on every building!?!?

They have been in business for over 30 years, their product SolarWall (the "transpired solar collector") is in use on buildings for the US Military, Wal-Mart, Fed Ex, Bombardier, Ford, GM, etc, they have won multiple awards and has been praised by the United States Department of Energy as "[in the] top two percent of energy related inventions." - why don't they get more coverage?!? Watch the flash presentation and tell me this isn't a serious and practical solution to help mitigate GHG gases and climate change...