Hashirama was Nerfed hard as an asura incarnate. All asura incarnates were shown as kurama jins(Chakra Mode) and with Hashirama's power he could've easily supressed/tamed Kyuubi as its host. Kishi instead decided to make his wife mito kurama's jin, like wtf? Imagine Hashirama with his current powers + 100% kurama within, GG NV. 