This is assuming that the average person has a solid grasp of the inner workings of an LLM, which unfortunately isn't the case. Regardless, it would only be a semantic argument if they were shifting the meanings of the relevant words to support their argument, which they evidently weren't doing here.

LLMs don't think, they predict patterns in language mathematically, making them functionally incapable of human capacities like compassion and intelligence, both of which require a conscious mind to be displayed. To use words that go against that without being precise is to imply the opposite. It's simply a matter of describing it accurately.

If anything, considering it 'AI' is a semantic argument because it implies there's some form of higher thinking occurring under the surface, which there clearly isn't. It would be like if I said my PC was intelligent because it has a CPU. Obviously we've passed the point of using a better term, but it's still unfortunate we've decided on that because it's inherently misleading.

It’d be very cumbersome and add no value to any conversation.

I think you're using cumbersome in an unnecessarily negative way since it's very much an inevitable feature of the concept at hand. Yes, it's cumbersome, like all controversial fields of study. Things like that work themselves out over time. Until then we'll just have to deal with it without misleading anyone.