He clearly did teleport Kurama from that distance to another location. That is different from space time barrier, space time barrier takes incoming attacks away as you can see the attack slowing entering a barrier but what Minato did to Kurama simply made the fox disappear and reappear in another location along with him from a distance of Gamabunta's height, no entering into any barriers. Obviously he takes it to another location where his seal is, if you read 503, you'd see he took Kurama to that building where he stores his ftg kunai and the building was destroyed when Kurama landed on it. He can do this to Sasori or 3rd Kazekage and Sasori can't summon it. Scrolls seal things, they don't summon them, its fuinnjutsu not time space ninjutsu, once Minato takes it away Sasori can't get it. He can destroy it there then come back to a seal he placed on the wall of the cave or on the ground.