What you think is better is not what I think is better. Imagination is not storytelling. You ask the "mean human" to write, it's going to be worse than an LLM in spelling and grammar, if you get anything at all.
Most humans never do a creative writing course after school, and the longest fiction most people will write is their resume description of what their previous jobs involved, or perhaps their dating profile.
Don't mistake what you see published (or what your friends are like) for the average human: the average Hacker News comment easily above the writing grade (and creativity) of e.g. many of the one-shots stories I've seen attempted on some creative writing subreddits. "Mean" is not a high bar.