> That's because using AI to write code is a poor application of LLM AIs

Then why is that exact usecase being talked about ad nauseam by many many many "influencers", including "big names" in the industry? Why is that exact usecase then advertised by leading companies in the industry?

It probably has a lot to do with those writing the code are not those marketing the finished software, and between the two groups they do not communicate very well. Once marketing gets any idea momentum going, they will go for it, because they can sell it, and then make engineering pay that bill. Not their problem.