Outside knowledge not transcribed in the bible is always going to be a vital threat by religoius leaders, including the JWS religoius leaders.
Fear and ignorance is their power and control over people who they forcibly subject the ones who they lure toward themselves.
Human ignorance in the hands of power seeking men is always going to be a dangerous human folly. High controlling religious cults like the JWS is just but one of these recognized religoius institutions.