@DnvnQuinn So, I get what you're saying, but... I'd contend that the same is true for literally every other gaming system that we see being used on MU*s. Most of the RP is social, and social stats in said systems are largely ignored. And even vehemently opposed, in some cases (because you should RP it! eyeroll) and this is true if you're playing D&D, WoD, BSG, or any other thing. Also, the combat of any system, including WoD is the largest chunk of the system. And that's not just a coincidence. It's just because the combat is the part where the system needs to have the most attention. It's the part of a game where the stakes are potentially the highest. Death. And it's the easiest, also, to define within a codified set of rules.
So, developing a direct Fallout PNP game, using WoD, or FATE, or SWD... doesn't matter. You're still looking at a far more solid and complete combat system for a game where combat isn't going to be the focus, because most people will want to avoid having their characters ganked.
That being said, using WoD and simply remaking the Perks into Merits would be simple AF. The harder problem you'd find would be to create the rules for all the different kinds of weaponry, potential upgrades to said weaponry, and especially energy weapons and Power Armor.
Using even a base Savage Worlds system, on the other hand, has that stuff already accounted for and included in the base game, whether or not you use the existing fan made Fallout supplements.