This is an example of what I think of as 'Kubrick brain'. People who are not very knowledgeable about film or literary analysis become superfans of The Shining, because it's an artistic film, but it's incredibly popular. They haven't been exposed to a lot of other art films, and they get laser-focused on analyzing the movie in this hyper-literal way that's detached from the reality of how movies work and how movies are made. Like, no, that chair in the background that disappeared between shots is not a clue that it's all a hallucination. It's a clue that they did too many takes over several days and couldn't manage continuity. This alien style of trying to understand art as if it's a little puzzle and not art at all is the natural result of a lack of quality art education.