Prompt creates a new abstraction to define, describe, and iterate on a solution, but it does not remove the fact that one should also understand the things that the abstraction "hides"… or in this case, generates.

I paraphrase:

While all new abstractions have made it possible to speed things up considerably, the paradox is that becoming a proficient programmer is getting harder. One must understand new abstractions while still understanding what is being abstracted away—because abstractions leak.