Dungeon Coach has gotten a hold of this analogy and has labeled it the water slide, a third option between sandbox and railroad. Not sure I entirely agree, but it's an interesting take on the clip.
If I were to use this method, it would be based on player-generated goals. The player decides where they want to end up and the referee's job is to make that journey interesting and winding rather than boring and straightforward. I think I could get behind that. As it's not taking agency away from the player and it's reactive obstacle generation to keep the achievement of player-generated goals interesting.