I'll comment on your thread as I go along in your theory
I think you're underestimating Naruto's speed. Remember, he's keeping up with Juubi Madara, arguably the fastest character barr 8th Gate Gai. Naruto's just that fast to be able to cover that much ground before Sasuke even teleported, which is instant.
You're underestimating Naruto's speed here, and his knuckleheadedness. It's not that Sasuke had a prep time imo, but rather Naruto decided to take the lead knowing Sasuke's teleporation is instant.
And what if their target was further away? like 100 meters out, the relative distance traveled by Naruto would remain the same because that's his speed, but if that distance is in Sasuke's range, then he would still get there instantly, making your point about Naruto's speed in comparison to Sasuke's teleportation null and void