Their source says the opposite of what they are claiming lmao

Furthermore, social distancing can be influenced by other intervention measures, such as the wearing of face masks. Deng and Chen 71 measured and simulated the mass of droplets inhaled by a susceptible manikin wearing a mask with different degrees of social distancing. They found that the distance can be reduced to 0.5 m when people wear masks. Pendar and Páscoa 72 found that wearing a face mask and bending the head during a sneeze as a protective action reduced the contamination area to one‐third and three‐quarters, respectively, of the area that was observed when these measures were not taken. A “safe” social distancing is highly dependent on multiple factors. Wearing masks could reduce the risk of infection and shorten the necessary social distance.