A single TBB from a 4 Tail naruto broke through them. If you think that will stop even a single TBB from Killer B from getting through, you will be going against the manga.
Those rapid fire bijuu dama weren't even charged, whoever posted that forgot to post the next panel:
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The explosions aren't even very big, they aren't getting through triple rashomon. A charged one that he used against Taka would, sure but those things can be avoided or played around via boss summonings and the like. Of course Jin team can win, but if they do it's not because of that, and if anyone solos it's not gonna be KB.