Also, it doesn't seem that his errors are any validation of the supplements industry
"Their influential paper in BMC Medicine, and subsequent work based on Newmaster’s approach, found that many supplements lacked ingredients listed on their labels and that toxic contaminants tainted others. Some stores pulled products from their shelves, and several major supplement companies embraced Newmaster’s work, paying large sums for quality testing by companies Newmaster established just prior to the publication of the paper. "
So, he basically generated demand for testing through his own companies. I mean, if this guy was selling cleaning products, tires, or perfume, all's fair in love and war. I think the trick is his academic appointment. If a PhD material scientist or chemist at a university said what the average tire or perfume commercial says, she'd probably find an academic investigation coming down on her head too.