I'm biased, I have used Zed's books many times, but I found that critique to be far more detailed than it was "good." I got the impression that the author perverted Zed's writing just to take shots at it. LearnCTheHardWay, like all of Zed's other books is of the "write the code first, try to figure out what's going on your own first, and then I'll explain it to you" style. I get that some people don't like that, and if you were just learning how to code, I could see how the C book would be particularly annoying, but he clearly states it's not for people new to code. Mr Hentenaar also can't seem to make up his mind as to how he would like a how-to book to be written. In the first couple sections he complains there isn't enough detail, and then as soon as printf() is introduced, he is whining about the fact that every line of code was explained. Further, as he complains that Zed does with K&R, Hentenaar takes a lot of LCTHW out of context to show why it is "wrong" (such as the "make is the new python" example). Maybe he's trying to be meta in the way he wrote the review, but I doubt it.
As a side note, it is (nearly) impossible for something that hasn't changed in almost 30 years (k&r) to keep up with something as dynamic as a program language. Even if the standard hadn't changed, the way a language is used is practically guaranteed to change over a period that long. Although, as somebody else said, the exercises in k&r are great and it covers a lot of interesting information, but does seem pretty light.