He can only teleport to it once it's behind you, and if he does DEFEND.
All you say is "just defend"you're kidding right? have you looked at the sheer chaos in that picture, to teleport inside the middle of it, you're crazy. There's no teleporting to the ground, he'd be in the middle of two waves of kunai - the ones he threw, and the ones his opponent is throwing.
Also. See that sheet/paper wrapped around the kunai, it can get damaged and once that happens he can't teleport anymore.
Rasengan = chakra wasted
+If he gets close to you DEFEND! Nagashi is both a defensive and offensive attack, Minato would find himself injured
If it was that easy to defend against Madara/A wouldn't of gotten beaten by this.
I respect your post, It was a good post, but now you are just acting like a hater.
You act like Reacting to an almost instantaneous attack is as simple as saying Oh ima just defend.
The thing that makes FTG deadly is that it gives the target almost no reaction time to counter.