Again, the matters of fact were established by the board and could not be disputed, which is why during appeals they had to shift to matters of law.
It is provable fact that he disputed the matters of fact multiple times in both formal letters and sworn statements made during the hearings prior to the appeal. The Board of Licensure had sole discretion to update the matters of fact. The process was totally broken in a way that made it nearly impossible for him to defend himself.
And, just to really make the point of the injustice of this, had he instead checked the box on his renewal that said he had practiced engineering during the lapse, the result would've been a fine and reprimand for the error. The reason he didn't check the box saying he had practiced engineering during the lapse is because he believed in good faith that he had not. Instead, the board seized the opportunity to punish a political enemy by creating a fraudulent factual record to call him a liar when no such thing happened.