He is writing about LLM mainly, and that is absolutely AI, it’s just not strong AI or general AI (AGI).
You can’t invent your own meaning for existing established terms.
You should research the definition of AI then. Even the A* pathfinding algorithm was historically considered AI. It’s a remarkably broad field.
LLMs are AI in the same way that the lane assist on my car is AI. Tech companies, however, very carefully and deliberately play up LLMs as being AGI or close to it. See for example toe convenient fear-mongering over the “risks” of AI, as though ChatGPT will become Skynet.
LLMs are AI as it is defined in Computer Science, not SciFi. And the lane assist on your car might also be, although it may just be a well tuned PID for all I know.