Initial helicopter training was never about # of engines. It was about getting student pilots in the air frequently, and learning the necessary skills like full-autos (which can be the result of several emergencies, not just engine failures) to save them and their crew one day.....
Army saying they can do it all in a sim is doing the students a dis-service. Am glad the Navy isn't going down the same misguided path. Even the FAA feels there is a distinct value in these maneuvers and still requires them for a rotorcraft rating.
Any modern commercial helicopter is going to feature a cockpit that will translate better to modern combat helicopters. That' s far from unique to the UH-72.
January 2015 Rotorcraft Pro Article "Going Vertical!"