Support apps for digital cameras generally require location access since a feature that many customers want, is geotagging the photos. Only some camera models have a built-in GPS, while other models rely on the presence of a nearby smartphone to provide the coordinates for the photo. Apps are typically developed to support a whole range of models, so they need the location access to support the non-GPS-equipped models.
This was the Android version. The Apple policy sounds more sensible. Even better would be a way to fake the permission (which I understand some non-Google Android variants allow).
