Well, one can simply say that Naruto's Kurama's host whereas the Bijuu aren't exactly sealed away in Naruto's body. That's not a problem regardless thanks to having Kurama who can establish a link between all Bijuus.Naruto used up all of kurama's chakra in vote 2 also so does that mean he doesn't have it anymore? Naruto has a piece of every bijuu inside of him and is there meeting place. Their chakra replenishes he just used all of it at that time. Don't know why you guys keep denying the manga