Most people do see productivity gains from using LLMs correctly. Myself included. Just because some people don’t learn how to use them correctly doesn’t mean LLMs aren’t helpful. It’s like when internet search came out and a handful of laggards tried it once, failed to get the exact perfect result, and declared “internet search is useless”. Using a tool wrong is not evidence of the tool being useless, it’s evidence that you need to learn how to use the tool.