I think you’re right. I don’t understand the general tendency of assuming malice when a combination of uncertainty about the virus, poor supply chains, and not-very-good underlying data would do just as well.
It’s also unclear what “masks” meant in the initial phases. An N95 respirator? A surgical mask? A homemade cloth mask? Each of these has different uses and effects. I seriously doubt most people knew the difference in early March, I only had a vague notion. The surgeon general likely is thinking of respirators, because all MDs in hospitals get fitted for it. They know how hard it is to put it on and take it off safely, and know how critical it is for it to be a good tight fit. None of those things are going to be true for most people in early March 2020. If that’s your frame of reference, then it makes total sense that you’d recommend people not buy masks.
Everyone going out and buying N95s when they’re not particularly useful to most people unless in a close confined space is a bad thing. It doesn’t actually save many lives, but does make it harder for people who need it (docs/nurses in close confined spaces, particularly with patients on respirators that aerosolize the virus).
People wearing surgical or cloth masks may help some, probably mostly in enclosed spaces and mostly for exhalation rather than preventing you from inhaling a virus from someone else.
Even then, it’s my understanding that the data isn’t awesome here. Many of the papers I’ve seen are under fairly odd scenarios (for example an airplane, lots of the same air, recycled all over, for hours, where the paper showed positive mask benefit). We don’t have much for bandanas, or masks that were washed 3 weeks ago, or masks that are tighter, masks that are looser. I’d wager it helps, a little, especially indoors.
In other words, this shit is complicated, why assume lying when instead we could just say, “it’s complicated, they didn’t get it 100% right.”