I think it is great to look for every little advantage.
However, if I throw a ground ball to the SS from home plate, the shortstop will start out by facing home plate. If I throw it from 1B the SS will start out by facing 1B. The ground ball is basically the same. Only thing different is the throw but infielders use their footwork to get in the same throwing position.
You know, Dan Heefner grew up in our building. No doubt, he is an outstanding coach. Think I will ask him what he does and why. Though I'm guessing it is a footwork thing.
BTW, I'm smart enough to know that I'm not all that smart. I like ideas, let us know if it appears to be helpful. For sure, I can't see how it can hurt anything.