You need a lot more than just the back-of-the-trailer view. Admittedly this could prevent someone / something being run over by the rear bumper of the trailer, but that's pretty much it.
For all other cases (backup), an overhead view, real or synthesized, would be much more helpful in establishing actual situational awareness. Anything less than this would still require the driver to G.O.A.L. (Get Out And Look).
For all other cases (backup), an overhead view, real or synthesized, would be much more helpful in establishing actual situational awareness. Anything less than this would still require the driver to G.O.A.L. (Get Out And Look).