The key parts of that, for the US at least, are,

Most states in the United States enforce priority to the right in uncontrolled intersections where motorists must yield to the right ... At T-Intersections, traffic on the terminating road must yield to all traffic at the termination point.

The underlined above is the point that would, in the US, apply to the accident in the video, assuming there wasn't traffic control not visible: if your road/street/highway terminates at the intersection, you are the burdened driver. (Uncontrolled intersections, even at T's, in the US, are extremely rare, in my experience.)