Chuck, I think the point is rather human. We all like to attribute our successes to skills and our failures to accidents.
When we succeed, we "knew it", we planned it, we pre-visualized it, we worked hard to get it, etc. We do not want to admit, even to ourselves, that our success could have been, and often is, a result of chance, luck, fluke, "playing around," etc. When we screw up, it was, of course, accidental, bad luck, due to unexpected circumstances, "who could have seen it coming," or somebody else's fault.