As you said " The Pharisees were the model for the nicolaitans, with their false oral traditions which the nicolaitans have carried foreward to this day." and note that "The common statement is that the Nicolaitans held the antinomian heresy of Corinth." and antinomianism and the doctrine of sola fide (justification through faith alone) are historically related,
The nicolaitans held the practice of using oral nonsense to control the people, just exactly as the pharisees did.