Reread that. That's the refutation of his "Nazi soldiers were just poor little patriots who were forced to massacre civilians" shit, something that is in fact objectively false. Some were forced into battle, or forced to hold a defensive position, but when it came to atrocities there was no coercion or disciplinary actions: it's a matter of historical record that wehrmacht soldiers who committed atrocities were doing so willingly and without coercion, and the narrative that they were forced is part of the "clean wehrmacht" myth.