Linkage knuckle failure

Came down off a triple at the track and the shock linkage knuckle exploded. Very glad to walk away from this without injury. Linkage bearings were replaced less than 2 years ago. I should have gotten around to them sooner , but no idea if that was the cause. Rear suspension was feeling great and cycling just fine without any tell tale signs of linkage issues. Was feeling great at the track until this sent me home early.