i think the problem with most widespread writing advice is that it’s meant for writers just starting out and not meant to be applied to All Levels Of Writing.
like “show don’t tell” is meant to encourage a new writer to think of different ways to describe something beside The Obvious and push them to observe how different uses of words can affect the reader. it does NOT mean “never outright state what is going on ever.”
the common advice to cut out things that aren’t essential to the story is to give new writers a better handle on how to PLOT a story-writers generally have to start out telling stories with Very Obvious conflicts and plot beats before they gain enough control of the form to tell more subtle ones. it doesn’t mean characters talking to each other casually is evil.
“start in the middle” is a piece of advice meant for beginning writers who often have much bigger story ideas than they can feasibly put to paper. they don’t have the writing experience to know which parts of their ideas they can execute well (or at all). starting in the middle then means writing the part with the most conflict and interesting things happening first (which is easier for a beginner) and, most importantly, gets them out of the planning stage and actually writing. it does not mean exposition is evil and your story should always start with something Big and Dramatic.
the thing with writing advice is that it’s not one-size-fits-all, and writers should discard any advice that they’ve outgrown or doesn’t serve them any more. the craft of storytelling is about learning how good stories are built and made from the smallest to the largest scale, not following a bunch of arbitrary rules to the letter.
