I value your experience and I have no doubt it is genuine. What I am saying is that what many would consider an evidence it is not for Cochrane.
The entire pharmaceutical industry is based on weak evidence and that is why organizations like Cochrane exist.
People who comment here as if Cochrane did just another study and not a systematic review of 78 studies probably don't realize how many drugs are currently in the market without the strong evidence they are requiring now against masks.