As I mentioned in an earlier post, I think when Madara's pierced, the fact that sasuke appears EXACTLY WHERE THE SWORD HAD BEEN STUCK (notice the shape of the rock and the tree in the background, as well as naruto's relative position) is key to all this. I think at that moment Madara realized the limits of sasuke's magical "relocation jutsu". I think the precision of sasuke and his sword's positions is very important.
Also the technique isn't really like Hiraishin at all if you think about it, for the latter isn't about "switching" at all, I was merely making an observation that this could be sasuke's counterpart skill to naruto's FTG (a skill he'll most likely learn by the end if he hasn't already somehow). And about Dojutsu space time jutsu, we already have Kamui, so the fact that it's Dojutsu doesn't really contradict this hypothesis.