Look at the curves - straight - sharp curve - straight - sharp curve
Almost as if it was designed to throw the freight/passengers around in an exaggerated fashion.
Similar for the sections of track that suddently shift to a steep grade without even a curve - that will jerk your teeth out even at low speeds.
So my supposition is that the whole sky-line system was more an amusement ride for 'exposition' goers and NOT meant to be 'showing off' American skill and knowhow.
They probably as a result had problems with 'riders' throwing up and the results raining down on other 'exposition-goers' on the ground.