Sure LLM is good to develop a feature but in 90% of cases in my career the problems I was working on weren't just coding and in that part, LLMs can't do everything.
It's also important to know that a typical dev spends 400-1000$ on API tokens that aren't still profitable for them.
Sure AI's useful and it will reduce the demand for software engs. to a point, but it won't eliminate them. At least I hope. Same with other fields... let's hope?
My previous company has a huge department where LLM coding is banned. The rationale is they work on really important industry secrets, as well as deal with customer's data. The risk is too high that something gets leaked.
The engineers bought the Kool-Aid.
The reality is: The company is bleeding money, and SW isn't their product (they're a HW company). They don't want to pay the bill.
In terms of code out there, in the world doing actual work, I'm skeptical that the amount of AI generated code is as high as 90%. In terms of model generating production code without human interaction (i.e. wholly replacing the software developer) I think we've fallen far short of his prediction.
For sure more code is AI generated and coding agents are useful. But not nearly to the ludicrous extent this man has been predicting.