Unlike a spoked bicycle tire, these spokes are designed to flex. Just like the picture above. The 360 degree stress you mention works well when static. Since they can flex, when the driven hub begins to rotate, the tread ring will lag behind a bit. How much is what I’m asking. If it lags far enough, the spokes will lay against each other. This is what I meant by collapse. That probably can’t happen if the outer ring is stiff enough but seeing it flex over the rock has me wondering.