It doesn't matter if the VO's decision was incorrect. If an applicant believes a decision was incorrect as a matter of law, they need to go through the proper procedure to overcome their inadmissibility. IRCC doesn't play fast and loose with these kinds of things.His ban was because of Inefficiency in IRCC's system. A WES report validated his stand and proved the VO's decision as incorrect.
Maybe IRCC is preventing a court case here?