Like Ramrasta and I sighted earlier in this thread ,Wilson is built like a running back ,low to the ground compact and thickly muscled ,which considering things like his hand size indicates to me it's mostly natural muscle, that's very important because so many injuries are to connective tissue which doesn't build the way the attached muscles do and depending upon how much weight training he's done ,when he started etc. if he didn't start weight training too early his growth plates may not have been distorted by lifting too early.
I didn't let my sons engage in heavy weight training until late in puberty because I started too early and suffered from arthritis in my back in my thirties because the growth plates there and other places weren't ready for the load. Started lifting and upending 300 lb objects at the age of 11 and continued throughout my teens.
Back to Wilson ,his stature means his joints are less susceptible to leverage which is HUGE in why guys like RG get hurt ,someone mentioned Vick his hands are like 8 1/2 inches Wilsons are 10 1/4 inches again an indication his frame and connective tissue are suited to all his musculature .
I think another factor is his baseball background ,he was drafted by the Rangers and is really proficient at sliding ,and if you haven't seen RG flop when he tries to slide it's worth Googling.
Like someone said ,the time will come, or to paraphrase Madden, once you've played one down in the NFL your body will never be the same.
Random chance will catch up eventually ,but as far as uniquely suited to avoid injury he's got a lot going for him,the one injury he can't avoid better than anyone else is concussion which could become an issue if he keeps running