I looked at the dominant, and it has this "slick" spot that doesn't have any edge, so it makes it easier to slide tough stuff like concrete ledges without eating shit.
there are no skis that are made like this currently. there are some with metal parts underfoot that make it easier, but since you can spread apart your stance on skis, it is really unnecessary.
although if you ride urban long enough, your edges will rip out and you have basically the same thing