I am not against the idea of "good enough" but I believe one can always improve their "good enough" through learning. wether it is learning an easier way to do something that in the end is less stressfull and easier to do "perfect".
Its kinda like children in school. Yeah they can read "good enough" in first grade but can they read "good enough" to get them through the rest of their life? NO, they must continue to learn to improve on their skills!