If you watch the video Aitu does not bring it to the challenge unless its in a bag . I think the treemail did not instruct Aitu to bring it to the challenge but at the challenge Jeff instructs Aitu to bring it to TC because either they merge next week ? or its just that no tribe has immunity ,,,,,,,,just reward .
OR you are right and I am wrong and the winners of the RC can give immunity to one person on the other tribe , simple as that
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