why does Cadillac disrespect it's history?

So I'm on the Cadiilac Corporate site, looking at the "tell us your story" commercials, and I'm watching the Joan Jet one, where she and her manager talk about starting out in his 76 coupe Deville, and then they show A SEVENTY-FIVE coupe devill.. What is that? you don't care about your history enuff to show the right year car on the professionally produced stories? are there no proffers looking over this material who know what Cadillac has built thru the years? pa LEEEZE!
http://www.mycadillacstory.com/