I accept your reasoning but the NEC states that the service raceways be bonded to the "grounded conductor" or through other acceptable means per 250.92. --standard locknuts not being allowed as sole means for the bonding requirement, but my question is also in reference to 250.130(A) where {all}the equipment grounding conductor at service equipment(branch metal raceway) is required to be bonded to the grounded service conductor and the GEC (acceptable bonding means per 250.96 superceded by 250.92(b)). I have to conclude that standard locknuts are not allowed as sole means for bonding at the service equipment for any metal raceways.