Just a clarification, shock absorbers do not suspend a vehicle the springs do. As this has motors at all four wheels with independent steering it may have some very stiff springs with limited travel but shock absorbers are not the reason it moves the way it does.
I saw they built the outdoor path then dug it up again and added contour, maybe that was intended but I think it is as Teebin posted that they tried it flat and decided that would not give the motion they wanted so they added the dips. Lots of infrastructure was added when the opened the path back up, all the conduit to the control building went into a trench at the apex of the turn and they covered it back up while they made the change. Maybe this was the plan but it looked like a change in design to me.
I think these have an airbag suspension with no shocks, it is not being inflated and deflated to change the vehicle attitude nor are there hydraulics involved. If there were they could have overcome the problem with the approach to the doors.