Fauci himself told The Washington Post that mask supply was a motive back in July 2020. So, it was a combination of two factors as you rightly point out. Thank you for correcting my omission.
“We didn’t realize the extent of asymptotic spread…what happened as the weeks and months came by, two things became clear: one, that there wasn’t a shortage of masks, we had plenty of masks and coverings that you could put on that’s plain cloth…so that took care of that problem. Secondly, we fully realized that there are a lot of people who are asymptomatic who are spreading infection. So it became clear that we absolutely should be wearing masks consistently.”
“We didn’t realize the extent of asymptotic spread…what happened as the weeks and months came by, two things became clear: one, that there wasn’t a shortage of masks, we had plenty of masks and coverings that you could put on that’s plain cloth…so that took care of that problem. Secondly, we fully realized that there are a lot of people who are asymptomatic who are spreading infection. So it became clear that we absolutely should be wearing masks consistently.”
https://www.washingtonpost.com/video/washington-post-live/fa...