I think one of the flaws is: nobody seems to want to agree that editing is far more expensive than writing (the to point where editing is routinely skipped). I

I think one of the flaws is: nobody seems to want to agree that editing is far more expensive than writing (the to point where editing is routinely skipped). I think it is well established in software engineering debugging is far more expensive then specification, writing, or testing- so one does not leave the big jobs for debugging. I personally believe the same is true for writing.