I haven't seen Sousas' endorsement of anything, have you?
Someone whose 'made millions' is hardly a voice of authority; the chap who invented nasal strips has 'made millions' but I wouldn't consider his opinion valid for rhinoplasty.
Seeing isn't believing, even for a chemical engineer. Vetting the data and assessing the claims, would be. Seen any? oh by the way -- whose to say his friggin friend that he brought along isnt a chemical engineer or something?
Obviously Al Sousa feels pretty damn comfortable with the independent state-certified third party analysis done on the P2O machine required for him to sign a 45 site contract.