That's the issue. This option for soft vinyl door panels is rather rare. I've only ever seen one car with it and I don't have a vin. Most 2015s have hard plastic.
MGW install with other adapter
Here is a pic using the new adapter. MGW has two choices. The Anarchy knob inside diameter is too tight to use the OEM MGW adapter. I used the MGW aftermarket adapter with a nut instead. Ideally Anarchy would offer a knob that has a bigger opening for MGW...