I am still puzzled by this and I know that I will not be able to find any public information to back this up, I still find the way the 105s are done to be illogical.
I talked with an WSO, I know different platforms and so on, but what he told me is that on the platform in question, 105s acted as I expected and not how they are on the DCS A-10. They would compensate for wind in such a way, that their shutes will hit over the designated target, unlike with the DCS A-10, where the canister will guide to the designated target and you have to manually compensate for the wind....
It is so illogical, that you might as well go with CBU-97, with wind data present, the computer will compensate automatically, so the shutes hit the target