[csours]

My opinion (feel free to have another one) is that it points to the need for training and more comfortable masks. The studies weren't WRONG per se, but they are very hard to interpret.

My whacky opinion: human facing sciences (medicine, psychology, diet, sociology, economics, etc.) have a huge problem with solutions that require motivation to succeed. In other words, if you are motivated, you can make masks work. If you are motivated, you can make intermittent fasting work. Same for EVs, Solar Panels, etc.