She said it because that was his strongest offensive technique. Rotation is an ultimate defense.No she didn't.
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My answer is the same: This logic is as flawed as saying Twin Lion Fists is more complex than Rotation because Neji never showed it.
Not to mention Rotation was in the past taught only to the heir, which likely changed by the time of The Last when Hinata did learn it.
That said, it can also be said that Hinata didn't learn Rotation because she was busy learning Twin Lion Fists. The possibilities are endless if we are going to discuss why she didn't know Rotation during the war. But bottom line remains that Tenten calls 64 Palms a more worthy showing of Neji's strength than Rotation.
-Ur logic is flawed since the fact that Hinata had tlf means Neji could learn it as she did. 64 palms is harder for Hinata than TLF. Hinata in the War didn't have Rotation or even the ability to release Chakra cacoon making it harder than tlf and 64 palms.