The word 'snapshot' is utterly redundant. Even more so when shooting a 10x8 view camera!
Shore and Eggleston pioneered the use of colour film as a serious art form. Up until then it had mainly been used in an exaggerated way by advertisers.
The lack of a 'core' or clear message is exactly why I find Shores work interesting. If you have trouble with his work please don't look at his recent Abu Dhabi project shot on a D3x...you'll most likely have a fit and die.