If this was the case, regular code review as a practice would be entirely unworkable.
Real, meticulous code review takes absolutely forever.
If you're programming for a plane's avionics, as an example, the quality assurance bar is much, much higher. To the point where any time-saving benefits of using an LLM are most likely dwarfed by the time it takes to review and test the code.
It's easy to say LLM is a game-changer when there are no lives at stake, and therefore the cost of any errors is extremely low, and little to no QA occurs prior to being pushed to production.
Would you mind going into a bit more specifics/details on why regular code review practice would become unworkable, like which specific part(s) of it?