I can understand the artistic choice to portray everything from Oppenheimer's mind / point of view and to not actually show the devastation, but like you I was bothered by how it was done with the bomb drop and also the complete lack of portraying the Nazi threat. Oppenheimer lived the entire war at home and never actually saw the bomb dropped. But it seemed disingenuous to me to show the power of his imagination when contemplating the universe so powerfully at the beginning of the film, then never portray his comprehension of the Nazi threat or the devastation his weapon would have caused. The closest they got was him imagining it in the room with the crowd, but that hardly did it justice in my opinion. That was critical context in many of the scientists' decisions: 27,000 people were dying PER DAY during World War 2 (on average). How you can portray the story of the atomic bomb without that setting (not to mention emphasizing the fear that the Axis would get the bomb first) is kind of beyond me.
