This isn't entirely true.All other deluxe resorts have a walk option to somewhere all except RIV. VGF prior to the walkway always had the boat or monorail option - two options RIV only has the option of the skyline - there are no buses to epcot or hollywood unless skyline goes down.
Animal Kingdom Lodge isn't walking distance to any park. A bus is required even for Animal Kingdom.
Wilderness Lodge has a boat to Magic Kingdom but isn't walking distance to anywhere except Fort Wilderness.
Riviera is walking distance from Caribbean Beach.