Kind of proving my point. Lola folded a while ago and although the chassis is still called a Lola, they liquified and couldn't provide services to anyone. Multimatic bought Lola's assets and they are partnered to supply and develop the body work with Mazda. But it is a factory effort and it should be receiving marketing attention. The fact that people don't identify it as a factory program kind of just speaks to the lack of marketing effort Mazda has put into it.
Looking at Ford, that program happened almost 50 years ago now. And since then what has Ford done with it? The GT90 concept of the late 90's which lead to the eventual production run of the Ford GT, at which point it had been 40 years. There are currently rumors of another version for 2016; there have been rumors before though so we'll see where that goes. But that right there recaps all Ford has done to pay homage to their Le Mans history in the last 50 years. Now think of all the times you have seen Mazda dedicate a concept car, use the livery, or use the #55 to pay tribute to the 787B. Mazda has 'honored' a 23 year old car more times in Gran Turismo alone than Ford has in the entire 50 years since it's Le Mans program.