Yes, that's true but experts costs money and time and GPT-4 is basically peanuts compared to that. Specially in cases where verification is easy like writing test cases or a formal email. And that is the reason enough for the hype.

I see similar comments everywhere where AI is praised, and I don't get why you need to comment this. Literally no one ever said LLM surpassed experts in their field, so basically you aren't arguing against anyone.