It of course depends on the circumstances - including, I should add, how long of a period of time the Wh/mi is spread over. Unless it's instantaneous that is (is it? Does it go negative when they decelerate? If so, how are they determining the average consumption - manually?). Any averaged energy consumption will reflect driving conditions, and driving conditions where you're generally going faster and faster with time mean you have to pay for that very large energy difference between being stopped and being at full speed. Note also that "multiple stops early in his drive" would be a bad thing from an efficiency perspective. Also note that I've been assuming 94% battery+motor efficiency!
The meter does go negative. I live up a mountain road and if I'm not using much heat can get down the 3.1 mile road (5km) with negative energy consumed!