From Night to Dawn

R. Levi Yitzhak of Berditchev teaches that it was only after the Jews narrowly escaped death at the hands of Haman that they readily agreed to the Oral Torah. Purim, according to this reading, then takes on important significance as the holiday during which we choose to accept the Oral Torah and become active participants in its creation and application, leaving the age of prophecy behind. But is this a positive or negative development?