Maybe the lack of spectators was due to the time of year. I talked to more than just one who said that a race at LM in November would be a stupid idea.
I agree, most people tend to hibernate this time of year and the only thing that seems to be in peoples heads is whether they can afford to buy the new Action Man with the real hair, gripping hands and realistic genitalia for little Jason for Christmas.
I would have dearly wanted to go but (40th birthday aside) the thought of rain, cold and wind tended to dampen the urge to make the journey.
Also, I would think the majority on non CA / ACO members that go to Le Mans in June for the 'crack' didn't even know this event was on.