No. I do not agree these are binding canons if the individual is innocent. The declarations then would be nullities without real effect and may be ignored without sin.
They argue that the sentence of schism and excommunication pronounced against them by the Archbishop of Tyana, the Apostolic Delegate in Constantinople, was unjust, and consequently void of strength and influence ... These novel arguments were wholly unknown and unheard of by the ancient Fathers of the Church ... The Jansenist heretics dared to teach such doctrines as that an excommunication pronounced by a lawful prelate could be ignored on a pretext of injustice. Each person should perform, as they said, his own particular duty despite an excommunication. Our predecessor of happy memory Clement XI in his constitution Unigenitus against the errors of Quesnell forbade and condemned statements of this kind. (Bl. Pius IX, Quartus Supra)