Yes. My goal wasn't to argue with the quote but to improve its argument. The quote said:

But could mathematicians afford to use this literary device? How would a reader be able to tell the difference in intent between what I have just written and the following superficially similar passage?

And I said, it's not just superficially similar, it's exactly the same and there's no relevant difference between the two that would guide us to use irony in one case and not in the other (or as readers, to perceive irony in one case and serious proof by contradiction in the other).