Board Thread:Theories and Speculation/@comment-27924662-20160817160245/@comment-25122992-20160830121842

Yeah, the fan interpretation that was stated by Black Zetsu. Either way, without the Rinnegan Susanoo wouldn't gain the light-blocking properties, that was made clear. Also, technically, reanimations aren't the living people, but rather dead corpses, so it's logical for IT to not affect the dead.