I can't wait to see how well they do in the Paris-Dakar Rally, because of course they'll back up all their hype by going out and handily beating the competition, just like the Tesla Model S completely dominated Touring Car racing and showed the GT class at Le Mans what innovation is all about. /s
What I'm talking about is the long-running automotive tradition - a useful one - of subjecting an automobile to competition by which to identify weaknesses, opportunities for improvement, and publicly showing that the vehicle is capable of rising above every-day use scenarios through its engineering prowess.
Using your logic, why is Aston Martin in GT / ALMS racing? Why is Mercedes Benz in F1 racing? Why is Volkswagen in off-road racing?
The list goes on and on and on. The only time Tesla has gotten to a podium is because Elon Musk paid for it to be there for the press. I suppose it makes sense not to take Tesla endurance racing, because it'd be embarassing.