Domain hijacking is impossible without access to the private key that controls the information written in the blockchain concerning that domain.

If somebody gets your private key, they can "steal" your website away from you, sure. Just don't let anybody access your private key.

As hopeful as people may be, humans don't surround themselves with the best security. Sure, stealing it without the private key may be impossible, but stealing the private key can be very possible.

So, your answer is - if your domain does get hijacked, then you're out of luck unless you pay the hijacker? That's a serious flaw.

Most people don't want their technical infrastucture to be immune to law enforcement, just the contrary.

That's not my answer.

That's how Namecoin works.

Namecoin is just a name/value store system. That's it. It might not be perfect for DNS but it's being used for other things like https://onename.io right now.

The public can choose to use it in it's current implementation or build a better way of dealing with domain hijacking should they so choose.

Sure, it has a wide variety of niches which it fits greatly, and where it can be successfully used - but if anybody considers it as a solution to obsolete ICANN, as the original article proposes, then it's an entirely different ballpark than being just a name/value store; and rather different criteria for success.