Very harsh but I can agree to a certain extent. Kit Harrington does have the mopey face down to a T and looks like he's on the verge of tears most of the time, but this is very appropriate for the solemn Stark look. I think in the show only Jon, Ned and Benjen have the Stark look as described in the books. Arya is great but she has a rounder face instead of the long, lean, solemn face described in the book. And the rest of the Starks have the Tully look, which I think the show pulled off very well, especially the hair.
I've had my suspicions about whether or not Jon actually did kill Ygritte or not. He dreams that he did kill her even though he thinks to himself that he did not. Is this the same sort of mental block we see with Ned and his memory of Lyanna? It seems like Ygritte would stick out, even in a frantic battle A) by being a woman in a predominantly male battle and B) her hair. Plus Jon would probably be looking for her. Not sure if I believe he actually did kill her (if he did it would be a strong Azor Ahai/Nissa Nissa connection) but I've always made a mental note when he thinks about it....I think there's something more here.
I do think the show is foreshadowing the kid from the hamlet, who claims to be a great archer, being the one to kill Ygritte.