When I'm wrong, I try to have the grace and maturity to say "I got this wrong. I got this wrong for reasons X, Y, and Z. Here is what I can do to prevent or mitigate X, Y, and Z in the future." I think an answer of that form builds credibility. People who see my mea culpa may gain confidence that I've learned my lesson and will do better in the future. If, instead, I were to say "A lot of people got this wrong. These people I hate were wrong too - kind of, I think they were wrong, they are pretty dumb. Anyway - a lot of people were wrong on this..." then that probably wouldn't inspire much confidence that I had learned my lesson. I read this article as more like the latter rather than the former.