Not sure if the Jon+Sansa moment was the same episode. However, I think the Littlefinger exchange was supposed to be of the same theme, but didn't really work.
Yes, the problem of the Hodor thing is the fact that it's a time-travel gimmick and those always irk me - just like Days of Future Past. It would be stupid to continue down the same path, but there's already two new theories out of this episode, and one of them is B = B. That would suck if true.