> It's not that the protagonist wants something, but something happens to them.
It usually is both. If the protagonist doesn’t want anything then they (and the story) feels directionless. If there is no bad thing happening to them then the audience is left wondering why the protagonist deciced to go on a crazy adventure now, instead of some other time.
Let me illustrate this with the start of Star Wars a New Hope.
Luke clearly wants to leave his podunk life and seek adventure. Also and independently of this the Empire swoops in and kills the people who has raised him.
If the bad thing doesn’t happen he would finish his chores and then pick up some power converters.
If he wouldn’t have the want of an adventure he would hand over the droids, and grieve his uncle and aunt. He also probably would go and pick up some power converters.
For the story to happen you needed both, the want and the bad thing. Otherwise the farmer boy would have remained a farmer boy.
> What are good examples of the story setup in the articles?
How about you pick a story and if we also know it we can try to see if the pattern fits? It really is kinda universal. Not saying that all stories will fit but it is harder to find exceptions than examples.