I disagree with you there I’m afraid. I think there are not nearly enough remote caches on the moor. There are vast tracts of Dartmoor with not a single cache, unlike letterboxing which is rife in every place you look.
I would also say most caches on the moor relate to a particular feature, for example points of interest or summits, or can be used as waypoints. In the very centre of the North and South moors there are very few caches at all.
As for using Cranmere Pool as your example of “remoteness” – it is only a 15 minute walk from the military road network. Hardly remote!