Tbh I don't know anything about it. Their blog post seems technical and well-thought out. They aren't offering these things for sale at $50 a pop, so they're not trying to gouge the public. They are going through the necessary testing. It doesn't seem like an effort that can be slapped down with internet comment outrage.
Though to be fair, my reusable KN95 (claimed), from China is just as thin as a surgical mask.