ChatGPT was pretty useless when it first released. It was neat that you could talk to it but I don't think it actually became a tool you could depend on (and even then, in a very limited way) until sometime in 2024.
Basically:
- the junior hiring slowdown started in 2022.
- but LLM's have only really been useful in a work context starting around 2024.
As for this point:
> According to very recent research from Stanford’s Digital Economy Lab, published in August of this year, companies that adopt AI at higher rates are hiring juniors 13% less
The same point stands. The junior hiring slowdown existed before the AI spend.