The French weekly "Air & Cosmos" reports that 150kg was saved by removing the radio and "cabin comforts", but that it was otherwise a standard machine.
Regarding the ethical side, way too much is being made of the "sacred mountain" aspect. Everest has been exploited for decades and in exchange for expedition fees has been turned into a trash heap of old oxygen bottles, climbing equipment and corpses. A pair of skid marks on the summit pales into insignificance.
Bravo Eurocopter!