Brother naruto had a bitchy time with kurama for years of being its jinchuuriki because minato though he couldn't handle all of kurama a chakra he didn't put all of it and he's seal was for Kyuubi to not take over control which got weakened over time and also by jiraiya hoping naruto will learn a bit of using kyuubis chakra now we are talking about juubi which has humongous chakra and they use sharingan to control it at the moment I think he can become its jinchuuriki but if he does become jinchuuriki he will lose control to juubi or else they need to seal it for good but this way there won't be a meaning to have juubi because you won't be using juubi to full power like in naruto they weakened seal in time I think so6p didn't instantly used juubi it takes time to control bijuus and we are talking about juubi here