That's what he means when he says it should be relegated to 'history.'
I'd submit that K&C is the fastest way to learn C if you knew nothing about C, or the best way to acquire the Zen of C, and that for those purposes it's still second to none, and its conciseness is a virtue ... but that Zed might be right about people pointing to it as a paragon of style to newbies who hope to write it professionally someday.
In fact, I'm disappointed that Zed let this project drop. Seemed neat.
I suppose it's not very interesting to bash someone good work. I think that most important he said in "An overall critique".