I don't think it is, my opinion personally. I don't think it's the sort of thing that should be hidden, or should be embarrassed about. I have felt left out as everyone who has added content here is very familiar with it in one way or another.
Is there a case that high school history is too German focused as it is? Very little seems to be taught about Stalin for instance, or Mao.
It's arguable for instance that post-war has shaped the 21st century far more than the 6-7 years of the war itself, given things like Israel-Palestine, North/South Korea, the Cold War, India/Pakistan and so on.
It seems almost like Germany is focused on because it directly affected us, but the rest of the world is forgotten a bit.