It's not a "view". It's an analysis based upon evidence from a controlled trial, not a random event which the CDC has dressed up to publish in the hope it will support the decisions of the politicians involved. The CDC is not unknown for this behaviour.
In fact 35 of the customers didn't even know what type of mask was worn, a really scientific study!
I prefer to believe a proper trial:-
https://backend.orbit.dtu.dk/ws/port...200363_web.pdf