I think the excercise here was setting up the track and camera for the one moving shot as they followed the girl to the ramp. Looking at this set up, I can't help but wonder if they took tide into account. When they began to set up, the docks were nearly level with the track. It's a tough harbor to shoot, it's deep so low light is fleeting. But the tide can be working against you.

They also have classes in Steadycam(a pretty old tech that stabilized the cameras) use which is interesting to watch. I think there's even a real film use class.