That is a screenshot of an illustration. No-one is claiming it to be a finite element analysis. The screenshot that you posted is not an accurate representation of the column 79 connection at all. You need to go look at NCSTAR 1-9 and see what NIST used to represent the connection again. They...
We used all the values from the structural drawings, unlike NIST we used the proper dimensions from the drawings and included all the elements, and then we had a finite element analysis done. What "cantilevered trusses" are you meaning, the wind girders maybe? This is the girder that runs from...
I also have an engineering background, and I have the drawings for the building, and I totally disagree with your analysis, and I made the video, so I know it to be accurate, I checked.