my thoughts are this ... the seal uzumaki used are quite similar to the sage of six paths... the eight trigrams seal lets the user of the seal use chakra in a different way or it combines thier chackra with the tailed beast diffrently .. hence naruto and minato using the yellow cloack ... and all other jinchurikkis cant cuz they dont have that seal ... that particular seal has been passe down just like tobi said since sage of six paths time which leads me to belive that uzumaki and sage are more connected than the others