Oh dear, oh dear, oh dear. From the article:
For example, parents may not be aware that network-level blocking systems are unable to selectively filter ‘encrypted’ traffic. ‘Https’ encryption is a way to make traffic unreadable by intermediaries such as ISPs. It is widely used in online financial transactions, for example. It is also increasingly common in routine, everyday Internet use. New browsers are built to check if encryption is available, and if so, to use it. Encryption makes it impossible for an ISP to ‘check’ the web address the user is visiting.
For example, recently BT was ordered by a court to block customers’ access to ‘Newzbin2’. But that does not prevent people from visiting ‘https://www.newzbin.com’.
Somebody doesn't understand the difference between an address and a protocol.