I agree absolutely, there is no subistute for looking proberly in the direction of travel be it forward or reverse. It is not like a car where rear-view mirrors are needed to see what is coming up behind you. My personal view is that they would be better off banned in most cases as people just use them to get lazy. We all know what happens when Forklift Operators allow that to happen.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.