It's because it's not a race track. Race tracks are designed with safety in mind. Large areas on the outside of curves, gravel runouts, and padding on all fences.
The TT is a street track with rock walls, telephone poles and stop signs. Those things don't exist on race tracks for a reason. You're going to have a bad time hitting a rock wall at 180 mph.
The TT is a street track with rock walls, telephone poles and stop signs. Those things don't exist on race tracks for a reason. You're going to have a bad time hitting a rock wall at 180 mph.