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I think that there is a thing called literary nonfiction which does use these higher level abstractions.

It might be that they are less fixed, as you say. That is a feature rather than a bug. It would take so much more text to describe everything literally than to use literary devices, which seem to be things that humans are really good at grasping. They are everywhere in film and TV but not everyone has experience naming them and referring to them in text at a meta level.

Imagine writing a symbolic AI in Go or C. There is a reason why people use Lisps and functional languages for very dense abstractions. They just do a lot of work, which some folks choose to deride as magic.