Question: How does the movie really end? Are the family trapped in a snow globe for all eternity, or were they given a second chance and Krampus is just watching them?
Question: Why was CGI used when Omi told her family about her first seeing Krampus when she was young. Why not use real actors and actresses?
Answer: It's just a filmmaking style decision and also likely a financial decision. They wanted to show the backstory without having to find locations, build sets, hire actors, and all the other expenses that would have come with it.
Question: What's the deal with Howie, Jr.?
Answer: He's just an odd little boy.
Question: Omi never lost her Christmas spirit, so why did the toys in Krampus' bag attack her?
Answer: The ending is that they are all alive and Krampus gave them a second chance. Evidence of this comes from the director's commentary and the comic book prequel "Krampus: Shadow of Saint Nicholas".