The Report is a near totally flawed document. - A government joke, as even some members of the Commission later admitted.
My good friend, Occam, has a razor you may want to borrow. One does not refute evidence by dismissing it as a "cartoon".
3D modeling is a very good forensic tool, especially when the exact positions of all the relevant details can be verified by multiple reference points. The size of the car, position of the car, position of the occupants, speed, timing, etc. are all verifiable data points which can be plotted from multiple references and placed in a virtual "Daly Plaza" accurate in size and space. Given that, it is easy to look at the whole sequence from any angle in real time.
Unless you have evidence to refute the idea that the model is accurate in its construction, your mere dismissal doesn't hold water. I know it is hard to give up the cherished myths of childhood, but the truth is Oswald (or at least someone in the book depository window) was the assassin.