What about human written software makes it more reliable than LLM written software?

is it the craftsmanship, or the deliberate decision making of industry veterans?

It's the notably poor quality of LLM-generated code

As opposed to the incredible code that humans are known to write...

If attention is all we need then what is better

Hours of human attention

or a few seconds of AI attention?

I am not just talking about writing the code but the brainstorming that goes into it.