You know Kubo, you could have just said that Yama's forbidden blow-up spell or whatever had strong magic to it that prevented Orihime from healing it. Sure that'd be dumb, but at least it wouldn't contradict Yama's actions
Yama's death felt empty to me. I felt like I should felt more of a sense of loss, but I didn't.
Genryusai Yamamoto is dead and now I am going to go eat lunch because I am hungry.