Absolutely wrong. There is no evidence that the typical masks worn prevent any spread. There is some evidence that N95s prevent spread, but most people don't wear those.
https://www.fiercehealthcare.com/providers/do-masks-really-p...
I'll also wager when they're talking about masks, they're talking about N95 or better masks.
Edit: Oh, shit what do you know. They're wearing a P100 respirator.
“After all masking and public health measures stopped SARS-1 in its tracks in Toronto, I would view the Cochrane Library meta-analysis findings with a large degree of skepticism.”
“Meta-analysis is a less than optimal methodology to apply to the issue of masking. Almost all included studies varied widely in their methodology, since it is very hard to ethically have a non-masking control group.”