I suspect that he isa being blocked by the spoke manufacturers, they obviously have a vested interest in this. I remember getting off the train at Salzburg, collecting my bike and thinking shit, there's a spoke broken; fortunately I had spares.
As someone who avoids potholes and doesn't do off-road any more I cannot see any advantage in it; why is it only on the front wheel, I can see there being problems with having it on the driven wheel.