Please explain in detail what the photographer means by "what's best for Nepal".

It's just a statement, it doesn't represent the trend of photography. At present, Canon's leading position in the field of digital SLR has not wavered, and it has an absolute leading edge in the field of professional high-end photography.

On the contrary, photographers who came from the era of all-manual film machines know very well that Nikon began to decline into the era of low-cost civilians as early as ten years ago. Earlier, it was the boss. In the era of F3, mid-range FE2 and FM2, Nikon was called "cow", that is "expensive".