Why would the whole thing stop abruptly due to a small hole breaching it?
Like I said. Put a metal rod in a revolving door and the door doesn't keep on spinning. It stops. Same exact principle here. Rotation cannot protect Neji from Chidori at this level in any measure.
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That is why.
I'll also ask this since you aren't making it clear enough.
Scenario: Sasuke charges Neji and rams Chidori into Rotation right where the center of Neji's body would be located with all he's got.
What happens in this scenario?