I would say that is a matter of opinion. Because it was recommended doesn't necessarily make it correct or fitting, just what someone in the marketing department of Dodge in 1970 thought, I see a yellow stripe on a purple car with a black interior "a bit odd". Not saying its wrong as it is a matter of opinion, just saying that to me, its different. Again, I think it is striking and looks good, but I suspect a lot more were ordered with a black or white rump stripe over the yellow one despite it being the recommended color.
Not trying to start an argument here, just offering a comment.