GrouchyGrape
The issue that this article is pointing out is that people will put up fences, windows, etc and somehow think that they are suddenly secure/private
I think that's a false assumption. It reminds me of the pushback against VPNs. A particularly bad example of this was David Bombal's "Are VPNs even safe now? Hacker Explains", guest with Occupy The Web. A very trite strawman against VPNs and the people "dumb enough" to use them. Plenty of trite platitudes like "if you don't pay, you're the product" (which is old news and its more accurate to say nowadays that even if you pay, you are still the product) and "VPNs don't make you secure". The guy makes all kinds of assumptions about what people use VPNs for. I don't have such a dim view of people, and the people who know what they are used for are using them appropriately.
I really don't believe people are relying on DNS filters entirely, and the kind of people who prefer to use the term "badness enumeration" are also the kind of people who should know better than to do so. DNS filters normally come bundled with a firewall alongside other tools, and this is part of the broader philosophy of defense in depth.
If you're being attacked by someone with a gun, and all you have around you is a knife, you are better off than someone who doesn't have a knife. The tools you have might not be as good as they could be, but they're the best we've got, as regular consumers. If you're intelligent enough to identify the problems with these tools, then please put your mind to creating better tools that do work.