Avoiding mask shortages is a noble goal (note that you're agreeing with me here -- mass-producing masks would also have avoided shortages). Whether or not the method employed was ethical or not is a separate question (and I agree with you that it was not because of how short-sighted it was).
I am not. My point is that solving the problem of mask shortage by allowing the infection to spread at full speed is like setting your home on fire to deal with a clogged pipe.
To say that somebody had a "noble goal" is to state that their intentions were good, not malicious. That is not the same as being correct. You are pointing out that they were shortsighted fools who did more damage than good, which I agree with, but that's not incompatible with having good intentions.