I think the most under-appreciated aspect of LLMs, one on which the article touched on but didn't directly address, is being the "developer that knows everything" aspect.

No matter how senior of a programmer you are, you're eventually going to encounter a technology you know very little about. You're always going to be a junior at something. Maybe you're the God of Win32, C++ and COM, but you get stuck on obscure NSIS scripts when packaging your software. Maybe you've been writing web apps for the last 25 years and sit on the PHP language committee, but then you're asked to implement some obscure ISO standard for communicating with credit card networks, and you've never communicated with credit card networks on that level before. Maybe you've been writing iOS apps since the first iPhone and Mac apps before that, spent a few years at Apple, know most iOS APIs by heart and designed quite a few yourself, but then you're asked to implement CalDAV support in your app and you don't know what CalDAV is, much less how to use it. An LLM can help you out in these situations. Maybe it won't write all the code for you, but it'll at least put you on the right track.