According to Osho, Hasidic mystics excluded women from ecstatic dancing not from orthodoxy or misogyny but because society of the time would not permit it. A religion must survive within its cultural limits; even revolutionaries can only push so far. To avoid being destroyed, founders choose the ‘lesser evil’—temporary compromises.
They kept women out because otherwise hostile society would have crushed the movement, so they compromised to keep it alive.