Nope, watch the whole Whistlin Diesel video. They DID smash the tow hitch with a large perpendicular force prior to the breaking, but it was in fact the cast aluminum frame that broke. While this was a torture test with conditions not encountered by regular users, the failure supposedly happened at least once in the field with someone whose trailer hit a pothole. Since cast aluminum tends to crack rather than bend, this has the potential happen even more when the trucks are subjected to smaller stresses over time as people tow.