It was a great video and I agree with your conclusion. However it’s important to note he specifically states not to generalise his findings as he’s not an epide

It was a great video and I agree with your conclusion. However it’s important to note he specifically states not to generalise his findings as he’s not an epidemiologist and human interactions are often much more complex. I personally don’t see how they would be effective in this instance, but they may have indirect/occult effects not obvious to those without the extra data The Japanese have.