There's a boundary between knowing vs. forgetting that it's a metaphor. When you use convenient language like in your examples, you tend to remain aware of the difference, or at least you can recall it when asked. When some people talk about AI, they've lost track completely.

I don't love the recommendations in TFA. The author is trying to artificially restrain and roll back human language, which has already evolved to treat a chatbot as a conversational partner. But I do think there's usefulness in using these more pedantic forms once in a while, to remind yourself that it's just a computer program.