As far as I understood the article, this is about a second download of a book purchased some time ago. I think in this case, it's not as clear-cut as the article makes it out to be. To stay with the real world analogy: while the article is right that nothing will glue the pages of a physical book together once the credit card expires, it is also the case that purchasing a book once doesn't entitle you to go to the bo…
If however, in the very unlikely scenario, they market those books as temporarily rented products, and clearly informed the consumer of this fact (to the point of informed decision, by legal definition), then the customer can only expect what was informed at the time of purchase.
By the sound of the article, this is not the case however. If the company had been located in the EU, they would be in violation of a number of consumer protection laws.