Dick - I would like to think that most QHI's teach autorotation as something non-mysterious. Moreover I have worked with many drivers who's heart wouldn't skip a beat in the event of an emergency (although I'm willing to admit they might quickly become quite focused). There are some very level-headed "cool" drivers out there!
If you experience a governor failure which leads to an uncontrollable engine overspeed (something which is also possible as a result of t/r failure) and which cannot be manually controlled, there is no alternative but to shut the engine down - and in a single that means entering autorotation!