I don't know if the decal is on the trunk. Quite frankly you are correct, Ford needs to update the website. I saw different painted strip schemes on two different cars so I really don't know what I am getting. One version had Dark Horse outlined on the hood. Don't really care for that but it's no deal breaker. Bring it on.
I didn't but will modify my order to add it. When I was at the dealership there was a Mach 1 with the decals and a Shelby with painted stripes. I could tell that the decals will irk me over time, and I plan to do a full body PPF and the decals will likely make it harder to get a clean application.
Not 100% related but on my 2022 Shelby Super Snake Sport I was glad it had stickers for the stripes. I ended up removing them.... just a little bit too gaudy for me. I also removed the large Super Snake Sport stickers off the sides, but kept the one on the tailgate.