That's not an argument against anyone even if it is true. The relative liklihood of one person vs another arriving at a correct outcome is irrelevant when you see the actual argument and conclusion before you. At that point, you must evaluate only on the merits of the argument and the conclusion.

Just out of curiosity, were you familiar with this post before you wrote the above? (And who wrote "This is a bit strong: a more reasonable interpritation..." ? It doesn't currently appear in the parent to your post.)