That is a reasonable criticism of mainstream economics. I am skeptical that it has anything to do with Austrian economics. Probably someone sat down with an unshakable belief that the Austrian economics meant something and extracted this claim.

I don't see why I should care about the correct attribution of this complaint. The Austrians are so bad at communicating that this interpretation has not helped me extract anything else from them. If other people can extract other useful claims from the Austrians, they should isolate and promote those claims.