Why didn't the rebels just shoot an unmanned ship at the death star at light speed?50 years of world building to who? It is only 9 movies for casuals who only watches the movies. Maybe 10 or 11 if one counts the non-main franchise movies. Also how can you say Last Jedi provided no narrative advancement after quoting what I posted on what that movie introduced? You could argue they did a poor job of addressing the first movie, but you can't say they didn't close the narrative threads or provide new ones. It was Rise that completely ignored the narrative thread from the Last Jedi that made the whole trilogy a mess.
Or do casuals not know what the Death Star is??