6) The constant demand for superb OEI capability robs safety. The weight in engines, fuel and lost payload spent making you immune to engine failure in the 10 seconds of takeoff rob you of a hundred more important safety features that we leave off to save their weight. The issue is not engine safety, it is overall safety, which is not helped one bit by OEI immunity. Any OEI power above PC2 with calculated exposure is wasted, and could have gotten you improved safety.
Not if you spend a lot of your time in an OGE hover!