Why must he mention nations killed specifically? It was targeted and touched a lot of people lives. It would be nice, but really the fact that it happened so late in our history, that it is in a memory of some people who are still alive is what we have to pay attention and be very aware of.
Jews: up to 6 million
Soviet civilians: around 7 million (including 1.3 Soviet Jewish civilians, who are included in the 6 million figure for Jews)
Soviet prisoners of war: around 3 million (including about 50,000 Jewish soldiers)