Board Thread:Theories and Speculation/@comment-31074250-20170318085333/@comment-734582-20170318151758

Uzumaki1naruto wrote: he can ask them to transfer chakra again to True. Still, post-VOTE2 he doesn't have the other biju's chakra, not in meaningful amounts to change his cloak. The biju could simply have touched Naruto and/or sasuke to undo IT.

besides, the entire point was that Naruto got their chakra because they wanted to help of their own free will. It would go against the whole theme here if every time naruto needs some help, he takes their chakra. Naruto being a meeting place was just so Kurama had an excuse to go back to Naruto.