Although I do EOLs to the ground, I'm convinced that they are counter-productive.
Modern helicopters are remarkably crashworthy. As long as you have a crack at the flare, you'll probably walk away.
The best pilot in the world will turn the machine over fifty per cent of the time when landing off-airfield.
What is really deadly, and what we do not practice, is getting into autorotation when the engine fails.
During practice, we give a warning, and enter relatively gently. It's not like that in the real world.
Research on Robinsons has been unable to turn up a single instance where a pilot who established autorotation was killed on landing - neither in countries where EOLs are mandated, nor where they are not.
Every pilot who was killed after the engine quit failed to establish autorotation.
What does that tell you?
We're polishing the wrong end of the autorotation, and writing off a lot of helicopters doing it.