Movies are movies. You can make a superhero films with a different narrative structure if you wanted to. Once again, the project was billed as 2 parts. Anyone with working knowledge of the IG storyline and the fact the movie was 2 parts knew he was going to win. Again, it was predictable. Plenty of threads on this very site called that happening well in advanced. The movie may have surprised you, but honestly while I loved the movie, it did little to shock me. Being unpredictable doesn't inherently add value to a project, either. Let's take Lord of the Rings. Everyone knows that Sauron was going to lose, right? It's predictable. Is it a better story if Sauron obtains the ring and everyone dies? It's unpredictable, after all!!! It again depends on what the film is supposed to be. What type of film are you making? Does your story support the themes? Etc. Honestly, the story should be your guiding influence, whether it takes you predictable or unpredictable routes.