It's more that a human author has had an experience and writes to communicate it to other people. They have objectives that make sense in human contexts. They have learned things, run into issues, solved problems, developed arguments, evolved their understanding, felt emotions, considered and rejected actions, and integrated those recent experiences into a lifetime of experience. Then they order and condense all of that into a form that communicates it effectively to other experiencing beings.

LLMs, in contrast, experience nothing. When they "write", they are not even vaguely approximating what a human writer does.