I have no clue where the author is working but...
We've lost 75% of the team over the last year.
We write code faster. It's not getting merged faster because we usually find something janky.
Decisions aren't made faster.
Understanding doesn't come faster.
Code doesn't have value. A well working system has value, the bottleneck is now between having code and having a working system, rather than producing the code.
> Understanding doesn't come faster.
With AI you can write a new Harry Potter novel in under an hour. But if I ask you about the story you can only answer “It involves wizards”.
In pre-AI era you could solve a bug in one week. But you would end up having a detailed mental picture of the system, which requires time to be created. That mental investment helps you make better decisions on the system or solve related problems instantly.