During my time at Rucker/Hunter....we did Touchdown autorotations on and off the airfields in the Huey.....lots and lots and lots of them. We did them Solo and with the Instructors. We did them with ballasted aircraft as well as empty. We did "Normal", "180", "Whatever it Takes", "Zero Ground Run"....and when the IP's were not looking ......competitions for the longest ground run.
But that was when we were all headed off to tropical climes where that "Skill" would be needed without a doubt and paid off with many lives saved and aircraft left able to be put back into service.
Times have changed since then I am sure.
That was back in '67-'68.