This is somewhat relevant, yes, but I don't think anyone here is/was laughing. We can see the oncoming juggernaut, but there's little we can do about it.
Yes, but the cautionary tale is about content licencing and access control, and tangentially about copyright. It's a stretch to suggest it's a warning about the content of the article, which is about applying VAT differently to ebooks and physical books and nothing at all to do with access control. It's not even a warning about ebooks, which are implied but not mentioned in the cautionary tale.
You can easily do something about it. Do not support the business model of holding information hostage, and support those that do not (ie, buy DRM free books, and even moreso completely free as in freedom books, to support the business model)