That article is full of misinformation. Affirmative consent policies do not shift the burden of proof to the accused. They simply clarify what consent is. The contract shown in this article is a gimmick. A lack of one of these contacts isn't proof that rape occurred. Everything covered in affirmative consent is already common sense human decency, this just puts it into policy. This is just more fear mongering. (Not from you, but some media outlets). Affirmative consent is not some outrageous thing that turns everyone into a rapist. It's basic human decency. One simple analogy to explain the policies, in fact the way I explained them to my children, is with money. You ask to borrow a dollar. I say yes and give it to you. The next day you take a dollar from me without asking. That isn't OK. You ask to borrow a dollar. I say sure, grab one from my wallet. You go into my wallet and take five dollars. That isn't OK. These are pretty simple, basic, non controversial principles. Somehow when we try to apply them to sex people freak out.