Basics
A simple explanation, perhaps too simple, but the MG struts attach under the Main Wing Spar, unlike newer types that separate the two by a Pillow Box. The 777 accident at LHR showed a better outcome at more than fail loads on the Gear. Up through the upper Wing skin, instead of severing the Wing Spar. There may be no connection whatever, but McD has built many types of a/c designed for the Carrier. Is there an Industrial memory at play in the design of this type?