The same question can be asked of a frame lock. Remember, force may be linear and run down the length of the lock, but frame locks have a big cutout of the lockbar to make it possible to close the darn thing. Making the bar any thicker than that does nothing to increase strength, it just increases the size of the contact patch mated to the blade tang and, perhaps, increases comfort of the handle.
I can't imagine how much this beast could take. I would love to see it compared to a triad.
