Oh please. Give me a break. As if the park doesn't have a richer history than that.
Rinkeby is pretty rough, and has basically no other reputation than being dodgy either. So someone likes to pick the rougher spots. Maybe someone who likes rap and they are mentioned in lyrics or something like that.
It, uh, kind of doesn't? For most of its life post-WW2 it was a coal depot. The park was built ~1990 and by ~2005 it was known for its drug culture.
ETA: A defense of the "rich history" of Görli is what finally got you to comment after 3 years?!