There are readers who want every point to be clearly and unambiguously set forth, and there are those who want to pry ideas and meanings out for themselves.
Hitler was such an anomalous character - he was so over-the-top chaotic in his approach to statesmanship, his manner and in the violence which overwhelmed the country initially. I think diplomats around the world... felt like something like that simply would not be tolerated by the people of Germany