Ironically, I think you also are overlooking some details about how LLMs work. They are not just word generators. Stuff is going on inside those neural networks that we're still unsure of.
For example, I read about a study a little while back that was testing the mathematical abilities of LLMs. The researchers would give them simple math problems like "2+2=" and the LLM would fill in 4, which was unsurprising because that equation could be found in the LLM's training data. But as they went to higher numbers the LLM kept giving mostly correct results, even when they knew for a fact that the specific math problem being presented wasn't in the training data. After training on enough simple addition problems the LLM had actually "figured out" some of the underlying rules of math and was using those to make its predictions.
Being overly dismissive of this technology is as fallacious as overly hyping it.