I don't know enough about the situation to have an opinion about much of this, but at least on this one I don't think you need grounds to disbelieve stated reasons for resignation. I've personally witnessed many people resigning and giving reasons like "to focus on my family" or "to focus on my health" or something when in reality they were parachuting out before getting fired or were resigning for other reasons but didn't want to burn a bridge by telling the truth. I wouldn't be surprised if being untruthful (or only partially truthful) in resignations is more the norm than is being honest, and when talking about politics that probably goes up even more.
I don't even see a contradiction in the first place. Of course someone who perceives received orders as illegal, and feels strongly enough about it to consider resigning, would "fail to perform" those orders.
My point still stands though and as you say: he was pressured to resign because he wouldn't do what the politicians were demanding of him - which is in line with your "failure to perform" claim.
The actions then done under the Emergencies Act to "clear" the Freedom Convoy from downtown were found to have been illegally invoked.
And you know crime in Ottawa went down during the Freedom Convoy too, right?
Have you put your shoes in the Freedom Convoy participants at all I wonder to balance your perspective? Do you care about the RCMP horses trampling and breaking bones of an elder disabled indigenous woman, who just moments before was basically preaching about love and peace?
I can find that video for you if you'd like, if you haven't seen it.
Otherwise it's not worth it to put anymore of my time to debate this one on one, when I'm responding to someone who tries to support their argument with "when most sources agree" without citing any sources, and where I can predict which sources you'll cite.