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The advise is pretty useless. Complexity often comes from incorrect abstractions, not from language features.

Programmers can build very complicated systems using the simplest languages available.

A language, and especially a low level language, often jumps in front of your nice abstractions and obstructs them with all the unworthy low level details and its exposed bare guts.

Techniques for eliminating this leaky abstraction are important indeed.

I agree, but I think "incorrect" is the wrong term, "suboptimal for the problem" would be a better way to phrase it.

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