The purpose of that suggestion is to protect against dictionary attacks. Agreed that the advice “should not contain any word in any language” is overly strict (better advice would be “should not simply be one or two words in some language”).
Regardless, password recipes are a solution for the problem of coming up with a different password for different services. Even using the technique in the comic to remember phrases like “correct horse battery staple”, it would be difficult to remember a different password for dozens of services compared to just remembering a single password recipe.
The purpose of that suggestion is to protect against dictionary attacks. Agreed that the advice “should not contain any word in any language” is overly strict (better advice would be “should not simply be one or two words in some language”).
Regardless, password recipes are a solution for the problem of coming up with a different password for different services. Even using the technique in the comic to remember phrases like “correct horse battery staple”, it would be difficult to remember a different password for dozens of services compared to just remembering a single password recipe.