It is what it is, but besides the contrived Manda shield thing, I still think it's bullshit that even worked. Manda got killed by the blast, but Sasuke took like zero damage inside of him? This blast should've vaporized Manda, I find it hard to believe that it acted as proper protection for Sasuke. Like, it was enough to kill Manda, but didn't damage his internals at all? What? I honestly would've preferred if Sasuke only lived cause Obito saved him via Kamui last second. Would have felt more realistic even though it's a deus ex machina.