This video seems to be more against China than about Mustang:

http://nepalishealthy.blogspot.com/2012/01/mustangs-isolation-makes-providing.html

In terms of healthcare, Mustang has no hospitals. Most people don't make it past 60 years old. When people get sick, a helicopter has to come down to take people away. People take great risks in living in an area like Mustang. Any minor injury not addressed in time can exacerbate into a major issue that could cost limb or life. People have to transport the sick long distances in difficult terrain.