That's not really correct. There is no evidence proving that Amenotjikara was in an early stage, it is just an ability. The databook states what it does, how it operates, and provides the range.I don't remember what the databook says, but I'm sure it's wrong when it comes to Ameno.. I'm refering to when Sasuke Ameno to Sakura's jacket from Kaguya's deminsion. He implied he was only able to Ameno that far due to switching place with her jacket.. But that was when the just was still early in stage, meaning I'm sure he can go even futher now without using a object to switch.
Amenotejikara
Amenotejikara (Heaven Hand Power):
A Ninjutsu using the Rinnegan received from the Sage of Six Paths. With in a certain range, the user of the technique can switch himself with the location of a target object in an instant. If the user switches himself with other objects in close-range combat, the user can evade enemy attacks in an instant, and can also attack by switching himself with a kunai or other weapon.
Kanji: Heaven, Hand, Power
Classification: Ninjutsu/Kekkei Genkai
Rank: No rank
Class: Supplementary
Range: Short to Mid-Range (0 - 10 meters)
User(s): Sasuke Uchiha
A Ninjutsu using the Rinnegan received from the Sage of Six Paths. With in a certain range, the user of the technique can switch himself with the location of a target object in an instant. If the user switches himself with other objects in close-range combat, the user can evade enemy attacks in an instant, and can also attack by switching himself with a kunai or other weapon.
Kanji: Heaven, Hand, Power
Classification: Ninjutsu/Kekkei Genkai
Rank: No rank
Class: Supplementary
Range: Short to Mid-Range (0 - 10 meters)
User(s): Sasuke Uchiha
The way Sasuke used it on Sakura's jacket was pretty much self explanatory, and Sasuke was in the range for it to be used as the Databook implies. There is no evidence of Sasuke using his S/T on a larger range when it comes to switching objects, but when it comes to just teleporting he can pretty much do it wherever his eyes can see. At least from my understanding.