Hiking a bit to get the overlook that fits your vision. Processing the film at labs that can bring out its quality. In this show and so many others we see the same things. All the great photographers are sticklers for details, the 'little things' that so many don't have time for. Things like camera format choice.
Serious photographers choose their film format to fit the subject, coupled with their vision.
Many don't work in the format they initially started out with. Tillman Crane works with ultra large format cameras, but you can bet he didn't get one of them for a present as a kid. All the little things add up. It is not a question of Canon vs Nikon. It is a question of whether the choice fits the photographer.