I don't find the logic strange. It may not be easy to understand. But in my eyes it's not sexismus, it's more a parable. He compares your point of view with something he says himself is nonsense to show how nonsensical it is in his eyes. As I said, maybe difficult to understand, but not illogical.
He also says that it can't be because of the stick, but must be a difference in the software if 9a4 works for you with the stick, but 9b2 doesn't. That also sounds logical to me.