Most people who take trains do so either because they have to (no other form of public transportation) or because they prefer to. Some of us even take the train just for the heck of it. The need for speed plays a very minor role. In fact, I prefer it when the train is slowly rolling down the track rather than racing. The video is interesting nonetheless, if only for the background info.
I was just on an Amtrak train today, travelling from Toronto to Niagara Falls. VIA used to run that route, but since 911, the Americans took it over. VIA still staffs it, though, from Toronto to Niagara Falls. Overall, I had a short but excellent ride: very smooth and very comfortable seats. Nothing wrong here.