The genericness makes it easy to grasp, which can be good for people who don’t or haven’t engaged much with fantasy. It also means the setting doesn’t matter much to people’s stories, allowing them to put whatever they really want in it. It’s just a whatever world for them to plonk adventures down in.
Pretty partial to the scene in the matrix where they spawn in all the racks of guns, and more generally the whole climax with Neo just pulling out new guns every time his magazines run dry.