Do you refer to what is spoken about in the article, or auto-immune disease as per se?
I have heard medical statistics stating that 9 out of 10 with auto-immune disease is female. Which to me would imply that something gender-specific, like genetics or the likes, is hugely responsible.
I get the feeling what you're getting at is that women are supposed to be weaker and get easily confused and it's all in their head though (apologies if that is in no way what you mean.)
But I can confirm that I am one of the lucky 1/10th of the overall population who have a diagnosed auto-immune disease being male.