“How do you know?”
He doesn’t, unless he has reviewed all the cases of the Beit Din of America. And to imply that Rabbis Schwartz, Willig, and Reiss don’t know the Shuchan Aruch is the kind of motzi shem ra that should get one banned from every frum web site. How about it, moderators? You would never put up with such a slander against a Charedi rav, much less a gedol. Do you accept “Joseph’s” slander as valid?