No one is perfect... heck, we probably cannot agree on what that even means. But we all have our own standards of what is good work, and should try to do the best we can. With practice we get better and more accurate quilting results. I re-sew seams if I think I can make them better the second (or third) try. Why not? The “galloping horse” theory doesn’t work for me because I am not looking at my quilts from a galloping horse. We each decide for ourselves what level of flaws we can live with.
To me, it would be sad if we didn’t continue to try our best with each piece we make.