I have a hard time understanding what you are looking for this season as well? You seem to bash most of the episodes so far and think that the writing is terrible, but Im not sure what it is you like about the show? If there is some type of big reveal next episode or "plausible theory" as to why Arya was walking around all willy-nilly does that change your opinion of the previous episode? If every episode of every season contained a surprise death or a expansive Battle....then I would agree that the writing was terrible.
I do think that some of the plot lines this season seem rushed, but I also think thats in part because the show has surpassed the books. GRRM may still put out several hundred of detailed pages of Arya's training, but the net result will still be the same, and the show creators have limited runway to get to those inflection points. We are no longer privy to the source material to fill in the gaps.