I really don't think that Wing Chun is right for the Military. Now, I don't know Wing Chun, but this isn't a knock against the style. I don't think that ANY of the traditional Asian Martial Arts are right for the military. In fact, aside from one created specifically FOR the military, NO Traditional Martial Arts are right for the military. If you consider MCMAP a TMA, then it is fine. Army Combatives is another great way to go.
I think that we have the right idea. Take the good stuff from other styles and put it into a system specific to our needs. It is done all the time, new styles are constantly being formed to adapt to new needs.
The military has a very specific use, which includes different types of weapons fighting (Very non traditional Martial Arts Weapons), hand to hand combat requiring fast and decisive kills, fighting in a very specific uniform (IBA and Helmet), and they need to learn it, teach it, and know it in a very short period of time.
While WC is a great style that has or could incorporate many of those things, there is some extra that isn't needed and there is some more that needs to be added. Honestly, I think that the way we're going is a good plan. With MCMAP, Army and AF Combatives Programs and I'm sure that the Navy is on their way too, we are training our troops smarter and more efficiently in the fighting styles they need.