If you can reduce a problem to a point where it can be solved by simple code you can get the rest of the solution very quickly.
Reducing a problem to a point where it can be solved with simple code takes a lot of skill and experience and is generally still quite a time-consuming process.
Plus there's a lot of simple code you shouldn't be writing either way, because it's in a library by now.
By their nature, LLMs will do their best with things that could be plagiarized.
And if you rely on AI to write that code now you still have no business writing code
That was probably a node / npm thing, because they had no stdlib it was quite common to have many small libraries.
I consider it an absolute golden rule for coding to not write unnecessary code & don't write collections.
I still see a lot of C that ought not to have been written.
I'm a grey beard, and don't fear for my job. But not relying on AI if it's faster to write, is as silly as refusing a correct autocomplete and typing it by hand. The bytes don't come out better