This is not just for LLM code. This is for any code that is written by anyone except yourself. A new engineer at Google, for example, cannot hit the ground running and make significant changes to the Google algorithm without months of "comprehension debt" to pay off.
However, code that is well-designed by humans tends to be easier to understand than LLM spaghetti.
However, code that is well-designed by humans tends to be easier to understand than LLM spaghetti.