Ashura was no Jinchuuriki
Well, this maybe obvious for some of you. But i'd like to point out several things about Ashura being no Jinchuuriki.
As we know, Hagoromo split the 10-Tails in 9 bijuus and gave each of them a name before he died. he told them that one day they would be united again, but not in the same form. also someone would show them what true power is.
Well, ashura didnt unite them, obviously this is narutos job, also we can assume that the bijuus were set free in the world as individuals (lol). this means ashura was no jin.
now to my real point:
in the fight against indra, ashura showed his 6-armed-battle-avatar. as i pointed out before, he was no jin. this means the so called "bijuu-avatar" of naruto is no bijuu-avatar at all. i'd rather say its some sort of senjutsu-susanoo'ish shit.
naruto > ashura