You hit the nail on the head. Anti-Covid measures are multi-faceted. Just masks alone isn't enough. Like you said, you also have to factor in hand washing, social distancing, lockdowns etc. We are in agreement there. I'm not saying masks are enough, far from it.This is the issue, masks, hand washing, social distancing, lockdowns are a lot of variables, we don't know if they all are or only some of them are, we don't know to what degree they reduce the risk of infection. We can attempt to break out the variables into a closed lab setting for testing but even then it's an isolated case study that lacks real-world modeling of infection vectoring.
While I am very glad you have not had any outbreaks in your town, but without the virus infection being present it doesn't matter if you do all of the prescribed practices to keep safe or not as it's pointless as there is no chance of getting infected. It's like saying I have a bulletproof car but never get shot at, in fact, your car would be worse off than a standard compact car due to the extra weight as both cars are effective at stopping zero bullets. So saying that the masks are the reason you are not sick when there has been no virus present is not testing anything.
Don't get me wrong, wear the mask, wash the hands as it's like wearing the seatbelt, or owning a fire extinguisher, or driving the bulletproof car until the event happens you cannot say if your prep work was effective but if you don't do the work and the event happens then you are simply the benchmark the prep work is measured against.
There have been Covid19 cases here but no full blown outbreaks. We've been having our temperature checked every day and random testing done. Some dude on another production tested positive but due to the active measures, there was no spread. I've had colleagues sent home after they failed a temperature check. They were tested negative but production was erring on the side of caution.
My issue here is that the article implies that masks don't do anything (unless I'm reading it wrong). I really hate seeing misinformation like that here and anywhere else. I think it's flat out irresponsible.