Board Thread:Naruto Discussions/@comment-24824859-20150202220511/@comment-25632268-20150202225119

I think it was simply to make Hashirama special and adds another level to his relations with Madara.

Actually, in manga natural abilities inheritance seems to work at random like Bolt and Himawari lack of byakugan (unless Kishimoto changes it in final volume as sometimes he made a mistakes in chapters that were fixed later in volume). Kushina was having so strong chakra and body due to her Uzumaki blood, that she was capable of quiet a feats after Obito removed Kurama from her, but Naruto almost instantly fell unconscious when Madara did the same to him.