I was one of the people who designed and delivered the training. I requested a longer period of time than they were able to offer. Three hours is clearly not enough. What it does allow is to give people who are inclined to be sensitive the concrete tools to be competent about it. What it doesn't do is address the needed shift in attitude or values. Achieving that requires far more sustained training.
The elements I would add in future are far more participatory elements that would give board members an opportunity to practise formulating questions and conducting an analysis and getting immediate feedback.