Gun Fu is a new style and type of filmmaking, and in that sense the genre has changed filmmaking and movies. John Wick happens to be at the forefront of Gun Fu. I get the writer and editor had an assignment to promote John Wick 4, but they should've picked different content to do that because the article actually does Gun Fu as a genre a disservice. I don't find the John Wick world-building to be that deep even taking into consideration the upcoming spinoffs, unlike Guillermo del Toro's stuff, LoTR, Harry Potter, etc.