Well, the designers at Vickers did put the engines in the right place to begin with. However, a low Vmcg or Vmca doesn't actually make much difference - it just means that the same effect happens at a lower speed. For example, Vmca will still require full rudder and up to 5 degrees of bank whether it's a high or low figure.
That notwithstanding, the point about nosewheel/rudder interconnect holds true - if applying rudder also causes a NWS input then the NWS input must help, unless the 747 operates outside the normal laws of the universe!