If somebody with zero skill in the arts can produce output of similar quality as a craftsman and about a thousand times faster, what is the point of art anymore? Sure, one can enjoy the very act of creating art, but we can't deny that art has value in relation to an audience, and is also a display of skill and a source of pride.
What if AI generates the perfect music just for you, based on your taste? Here we lose any and all social/cultural aspects of music. There's no point in discussing music as we have no shared experience. There's no point in emphasizing your favorite song because everybody exclusively listens to favorite songs.
What if you need to write a long essay and use AI to help write it. I receive it and use AI to summarize it. Other than this interaction being supremely depressing, what is the point of it at all? Just submit it to the big machine and perhaps some of it will show up in my use of ChatGPT-17.
So you were faster to write something whilst I was faster to consume it. This allows the both of us to do more in a single day. This "big win" won't gives us back free time nor raise our wages though. I just means that the nature of the work is for us to take the job of being guard rails for AI, a soul crushing job in itself but also temporary, until the rails are no longer needed.