The Sansa plot also doesn't make much sense. The Boltons had hundreds (thousands?) of horse riders, even after the battle with Stannis. Even if Sansa and Theon survive the fall uninjured, they should barely be able to get anywhere before those riders catch up with them. But only a handful make it to them, just a few minutes before Brienne does? OK....
What happened to the hounds? They were ready to rip Sansa apart, then Brienne and Pod show up and they disappear. There wasn't any barking during that whole 'meat-and-mead' scene.
