The changes they made to the Tyrion scenes at the end were significant and messed up the story. Not mentioning Tysha (his first wife) and the fact she was not really a whore etc., changed the context significantly. Was still good but would have made much more sense with at least some mention of it even if they did not want to bring the Jaime side of it. That is what led him to feel completely isolated, the killing of Shae, and the provocation from Tywin etc. This way he leaves on good terms with Jaime and does not have the total isolation so makes less sense.
The Weirwood man was disappointing as he should only have one eye and a large blood red mark on his face (which is a major clue as to who he originally is) and the tree is supposed to be literally growing through him.
Finally, no Coldhands and no LS?