Yes the std frame has this step at the back. The Holographic Hammer Cafe Racer had the whole tailframe chopped off and replaced with a shorter one with integrated tail lights. But there are other cafe racer builds out there (like the one above) with std frame and they look superb. Sadly here in Europe (at least Germany) we can't just weld the frame or use any accessory part on the market. Nearly everything has to be tested and allowed and a chopped frame is (nearly) never allowed, so that's not an option. Basically everything that is cool is not allowed.
What I really would like to know is whether they build a completly new dash board mount, or if they modified the standart one, because if you use the clip ons, you don't have the lower half of the clamps anymore in which the dashboard holder ins integrated.