Just watched the mid-season premier.
For this episode, it's as if they made a long list of "things new viewers will need to know" and made a script out of that. It took me a while to realize it. That pretty much explains all the scenes in which one character, in inexplicably emphatic tones, tells another character something that's previously happened in the show, which the other character already knows. "Ohh, they're talking to the audience, not each other. This makes more sense now."
And in fact, it would have been far more entertaining with that foreknowledge. So you're welcome.
The episode was surprisingly decent in spite of all that. The method of having long quiet passages mixed with short intense scenes of action is actually working.
The worst thing about the episode was Lori's incident. That was quite stupid. Unless that walker crawls into the car and eats her and her somehow as-of-yet unzombified fetus. I would support that.