> spaghettification is also a non-issue, as long as the framework defines clear containers for spaghettis

Sorry, but I disagree strongly with this. When there is, inevitably, a bug that the LLM can't fix, someone's going to have to read all that spaghetti, and they'll curse whoever put it there. "clear containers for spaghetti" is a pipe dream, all abstractions leak, and the bug may very well be in the spaghetti. "Just start over" is unrealistic for large, complex apps.

Of course, if you really have a solution for this, that would be incredible.