I think now we have identified this problem (programmers need more abstract metaprogramming tools) and a sort of practical engineering solution (train LLM on code), it's time for researchers (in the nascent field of metaprogramming, aka applied logic) to recognize this and create some useful theories, that will help to guide this.
In my opinion, it should lead to adoption of richer (more modal and more fuzzy) logics in metaprogramming (aside from just typed lambda calculus on which our current programming languages are based). That way, we will be able to express and handle uncertainty (e.g. have a model of what constitutes a CRUD endpoint in an application) in a controlled and consistent way.
This is similar how programming is evolving from imperative with crude types into something more declarative with richer types. (Roughly, types are the specification and the code is the solution.) With a good set of fuzzy type primitives, it would be possible to define a type of "CRUD endpoint", and then answer the question if the given program has that type.
If you can imagine an evolutionary function of noabstraction -> total abstraction oscilating overtime, the current batch of frameworks like Django and others are roughly the local maxima that was settled on. Enough to do what you need, but doesn’t do too much so its easy to customize to your use case.