Earlier quoted context omitted.
No guarantee that will happen. LLMs are still statistically based. It's not going to give you edgier ideas, like filling a glass of wine to the rim. Use them for the 90% of your repetitive uncreative work. The last 10% is up to you.
The pain of that 90% work is how you get libraries and framework. Imagine having many different implementation of sorting algorithms inside your codebase.
It's why people say just write plain Javascript, for example.