Those 2 little strips of aluminum left from the cutting away the rest of the aluminum stock
by the Machining processes cannot be rationally compared to a Large section of aluminum Tube and welded structures ..

They need to put that piece in a shaker that counts the shakes with a weight on the end replicating a full Bag of your cargo , and rattle it until it breaks .. that is so they can (or unless they) stand behind it with an Unlimited Lifetime warrantee...and the company survives long enough to Honor that guarantee.