It's relevant because the article opens up comparing BC and CC. If there were a credit card denominated in BC, the credit provider would probably hold the BC f

It's relevant because the article opens up comparing BC and CC. If there were a credit card denominated in BC, the credit provider would probably hold the BC for a while just like they do with money, therefore grating it's users the same warranties. A better, tough far from perfect, comparison would be to sending money through mail to later receive the goods, or a debit card sans the paper trail. The article starts from a fallacy, but that doesn't mean it's point is null.