Yes, I read that... The problem is, one can never be certain if what they are buying is what it is claimed to be. The Schulze organisation could conceivably sell "polluted" herbs but simply say they do not, and how would we know either way?
I recall Joel (Barefoot) stating on many occasions that he does not care for the difference between organic/wildcrafted and non-organic/treated; so, by this reasoning I must assume that his herbs are by no means pure, either.
As he might say, it all comes down to $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$!!!