Thank you for sharing this story and for your courage to look back at human failures. This is the only right way. Unfortunately, in the worldwide Data Science there are not so many courageous people like you. Most of them ether ignore their mistakes, or hide them for ever. But especially the human factor on training and developing AI solutions designed to support humans is crucial. Because after all, machines do nothing wrong, they follow human instructions and knowledge - and here it's up to us to do it in the right way.