Earlier quoted context omitted.
The issue is that the comparison is to the Rivian which only has a 4.5 ft bed. The rear 4.5 feet of the Cybertruck isn't too hard to access, its the front 2 feet that is problematic. The rivian doesn't have that feature.
For loading furniture, the rear of the Cybertruck is extremely difficult to access, because you can only access it from the rear of the vehicle.
Again, I was comparing to the Rivian. I'm not convinced that the sail sides on the CT are appreciably higher than the Rivian over only the rear 4.5 feet. The Rivian is not a more practical vehicle by any stretch of the imagination.