this was great, but kazuha was quite out of character.. he doesn't hate the shogun, nor hold a grudge against her. he states himself that he doesnt hold her at fault for killing his friend, as it as a duel.
That is only my thought. But i think it would nicely correspond with Tevyat begin destroyed during war with Heavenly principles, therefore making Ei leaving the tevyat as she was one of few survivors
Kazuha doesn't hate Ei. He holds not grudge against her, because she killed his friend after he lost the duel, he himself requested, to Sara. The rule is the loser gets executed, juts how the Shogun executed La Signora after she lost the duel against the Traveler. He doesn't hate her, because he knows she had to kill him since he wasn't the victor.