I am honestly not sure on what data you are making your claims. Do not get me wrong, I am not a stuck-up person of numbers type of person, I also believe in experience and intuition, but in my life the amount of re-work is fewer than what you think here. In fact, we have had maybe 4–5 reworks of relatively small tasks in my 3 years in my current company. I think our perceptions are easily radicalized by the bad experiences.