Health, kindly address why you think Weberman didnt have any interest in keeping Hilchos Yichud if he was so stringent on other Halachos, and why you think Satmar was ok with this?
Since her stockings were less than 90 Denier, she has a Din Goy. Yichud with a Goy is only a Takana of Hillel, who was an obvious Tzioni (since he traveled to Israel from Bavel), and the V’Yoel Moshe was M’vatel all Tzionish Takanas.
Pashut.