That article is based on old data.

"What experts also need to learn: The vaccines are highly effective at preventing symptomatic COVID-19, especially severe illness and death — but no one yet knows how well they block spread of the coronavirus."

Now we know at least one blocks transmission at a high level.

https://twitter.com/_/status/1363495185880133634

Once this is confirmed, and all the vaccines show the same, then you can remove the mask.