>Wherever LLM-generated code is used, it becomes the responsibility of the engineer. As part of this process of taking responsibility, self-review becomes essential: LLM-generated code should not be reviewed by others if the responsible engineer has not themselves reviewed it
By this own article's standards, now there are 2 authors who don't understand what they've produced.
This is exactly what the advice is trying to mitigate. At least as I see it, the responsible engineer (meaning author, not some quality of the engineer) needs to understand the intent of the code they will produce. Then if using an llm, they must take full owners of that code by carefully reviewing it or molding it until it reflects their intent. If at the end of this the “responsible” engineer does not understand the code the advice has not been followed.