This is not a rebuttal to his point, that he paid for movies and now he can't watch them. It might be an explanation; it certainly is not a rebuttal.
Apparently you didn't read the next sentence after your quotation from the article. "In the end, Apple is taking care of da Silva so he can keep watching his movies."
Apple techs working on the problem did not originally know he had moved from Australia to Canada. The issue is pretty obscure on streaming services and will only hit someone who has packed up their gear and moved around the world. Once Apple figured out WHY he was blocked from watching his streaming content, they fixed his problem by exchanging his Australian licenses for Canadian licenses. Problem solved.
This was a problem created by the DVD industry who did not want consumers buying products across international borders due to extreme pricing differentials in some Asian, South American, and African markets, compared to the North American and European markets. So they put in region Digital Rights Management that would not allow disks made to play in one area to play in others, unless you had a universal or multi-region DVD player. It also prevented some piracy, most of which came out of Russia and Asia, plus some from South America. You could buy the copied disks but they wouldn't play. . . but the pirates were quick to start making disks in the right formats. The DRM just poured over into the purchased streaming formats by default, even though there was not much real purpose for it, except minor copyright law differences, and who collected the per stream copyright royalty pennies.