Why Is Vanilla The Only Flavoring Available For Barq’s Root Beer In Coca-Cola Freestayle Machines? [VIDEO]

More and more Coca-Cola Freestyle machines are showing up in the Tri-State, and I love them!  The more choices the better!  There are a lot of combinations available that I would try, and most of them I wouldn't.  There is one thing I would try that isn't available in this seemingly limitless machine, and I don't know why.