In comparison with conspiracy theories, populism, outrage culture, and people getting their news from facebook, I'm pretty sure this is a drop in the ocean when it comes to distrust of scientists.
Also, let's assume the facts are that masks are 5-10% effective in protecting the wearer. The phrases "masks can protect you" or "masks have little effect in protecting you" are both true from a scientific point of view, agree? I don't think it's a good idea to push fake statistics or cherry-pick studies, but I do prefer the former phrasing from a political and humanitarian point of view.
EDIT: former, not latter :)