I did a project as few years back - it was people categorizing construction defects from a form into a drop down. A human could do this fine, and while there were instructions, it was not clear until you saw how others did it.
AI would still not solve this problem properly today, and may in fact be worse the more data it's trained on.
Another problem it does poorly today is writing in the style of another. It might be the whole copyright adherence but it refuses to follow certain styles. If you give it examples and ask it to break it down into a prompt on how to write, it will still do a poor job. It will work if you actually put examples in the prompt, but at this point, you might as well fine-tune it.