It was bad faith of DHH to say that posting the pyramid was meant to compare the list of names to genocide. The good faith interpretation would make it extremely clear that the employee was comparing the list of names to the lowest rung in the pyramid AKA the farthest removed from genocide. That rung is simply called "biased attitudes" and includes a wide span of things, none of them remotely comparable to genocide and several of them could be used to accurately represent the list. Eg. "Fear of differences", "Stereotypes", "Justifying biases by seeking out like minded people"
I don't really understand how or why DHH would construe that as "you're comparing a list of company names to genocide"