Haha, the Uchiha will no longer be Konoha's police force, they'll be Konoha's firefighters! I do agree the flame extinguishing thing looks a lot like a cleaner version of Kakashi's dimensional warp. Maybe because Kakashi isn't an Uchiha, his MS jutsu is really messy and exhausting.
when kakashi uses his ms technique, its virtually instantaneous. when sasuke put out the flame, it looked like the flame died out. theres a difference i think, if the flame was warped away, then it would have been instant. it looked like a flame that was dying out, so i think the technique is different