Compilers also usually give you the same output for the same input. And fwiw I do spend quite a lot of time reading compiler output to check that it's not doing something stupid or unexpected (usually as part of optimization work).

Also this sort of 'technological whataboutism' really isn't helpful, compilers are entirely different from LLMs. I agree that it doesn't make much sense to read or review LLM output in detail, but I also don't plan to use LLM output for anything important or mission critical. That would be irresponsible.