> The professor intentionally taught students incorrect information when they were seeking out resources to help them learn the material.
No, that is not true. That's your narrative.
> Maybe a student spent 2 days studying those incorrect answers. I don't know if there have been studies on this, but I suspect it's much more difficult to unlearn false information one has absorbed than it is to learn the correct information in the first place.
Furthering of your narrative, and appeal to authority even though the authority is lacking.
> In other words, the professor experimented on his students in a way that shows he's more interested in determining whether or not they were "cheating" (by his definition) than he is in helping them learn the material in a substantive way, and assessing whether he has adequately taught them.
Also, narrative building.
> Any student failing the exam because they studied the poisoned material is just a testament to how much he failed as a teacher.
And here is the outcome of your narrative, you've come to the conclusion that students cheating is actually a failure of the teacher - why? If students cheating was the failure of the teacher, why were other students completely capable of learning the material from lecture and supplemental material? Surely, the number of students failing the course would be 100% if the teacher failed to teach.
We know that's not the case, so your premise is bunk from the get go.
Maybe you could make the argument that the teacher is not good at teaching, or poorly taught their students, but then you'd need to find evidence that the other students who did not cheat had to go through alternative methods to learn/do well in the course. Unless you're the student in the classroom, or the teacher roleplaying in the comments here, I don't think you have that evidence.
So I'll make a value judgement here and say that you're trolling by the canonical sense of the phrase.