You’re spamming this same study throughout the thread without realizing that is uses a different and much stricter definition of “hauling” than the average person.
Could it be possible that while you can cram something in the backseat of a car, a truck bed might result in less damage to vehicle interiors and the object being moved?
It's a tool not a baby. Are you buying vehicles several times the price and encumberance because you can't fold down the rear seats and lay down some tarp?
Which is rather the point.