Yah, I figured it's good to see the counterargument (scientific reasoning), so people can decide for themselves. I have a relative that's gone for 'Dr.' Mercola's hustle (worth $100 million), hook, line, and sinker, so I'm a bit hyper about any sort of medical misinformation.
Kriss Sands (author of the counter-argument article) is a real advocate over at Society for Barefoot Living (https://www.barefooters.org).