Yes, they aren’t confident. Isn’t it amazing that that is their results after 2 fucking years and a ton of studies into it? You’d think they could come up with more conclusive evidence that masks work. But they didn’t. The science on masks isn’t resolved. That’s pretty damning in my view.
Surgical masks don’t do shit. They only protect larger particles. Virus shit is far too small for any effectiveness.
The responded article says this:
They literally typed some shit into the journal search database that had that many articles. They didn’t study all of those articles. Their study is founded exclusively from 6 studies. The Cochrane review’s approach is far more comprehensive and goes into considerably more depth in many more studies.
So, maybe you didn’t read the articles? Or maybe you don’t understand population level, public health study methods.