This film manages to shine a bright light onto the heroic and humble Sherpas who come across as having a great deal more humanity and dignity than some of the climbers that rely upon them. It's simply unbelievable that in the 21st century someone can bleat on about what the Sherpas "owners" might think about their demands! That chap needs to climb into some elementary school or undertake some self awareness training for his next expedition. This contrasts with Phurba Tashi, a Sherpa with 21 ascents under his belt, a mountaineering giant who has retained amazing humility despite his achievements and who shows remarkable self control and dignity whilst being patronised in front of his Sherpa brethren. In many ways his final decision just demonstrates his excellent judgment and courage. There is no preaching here by the filmmaker - all the film does is let us see the realities. It's an important mountaineering film.
