Futurology

It's because you are using a chat/instruct fine tuned version of the LLM.

Don't think that represents what is actually currently possible for creative writing with a SotA LLM.

Part of their fine tuning step was literally to make it come across as more soulless than it was in the pre-release version, which was still a chat/instruct model (just an earlier version) and yet coming across as too human-like to users.