I got my update today. Of course I knew more about it than the service guy did. I explained it was to fix issues like vechicle roll back on inclines etc. He then put that on my service sheet that I was having an issue with rollback. When I got my service receipt it stated that rolling back on an incline was a "normal function". He obviously had no idea what the update was for or what it did.
Haven't had a chance to see if this update fixed the issue. It may all be in my head but after the update I seem to get better throttle response.