I wish they had at least answered some question.. Thats probably the issue with the episode, it didn't really give us a tidbit of insight.
I can definitely see that. This episode was mostly expository. There's nothing inherently wrong with exposition, it just needs to be interesting. This episode wasn't presented in a way that keeps viewers engaged because there is some insight. Reiner's fucked up and they have some sort of relationship to Monkey Trouble. It also gave way too much explanation for why Eren and Ymir couldn't just run away.
I was surprised when I got to the interstitial and nothing really happened. There was some potential with Eren getting mad at Reiner and Bert, but that can't really go anywhere because Eren can't do shit yet. The entire episode probably could've been condensed a bit to allow for more plot and conflict.
Also Eren is crazy. He knows he should be calm and gather information, but that little fucker is too hotblooded for that, especially when faced with the two who were responsible for getting his mother killed. He isn't going to act very rational when that comes up.
This whole human titan thing is getting confusing. Ymir is not what Eren and Annie are by any stretch of the imagination. Annie's and Eren's seem to be piloted like Gundam's where Ymir is actually a miniature Titan. Ok wait there are different classes of Titan Gundammu? Get the fuck out of here, Ymir got shafted on her model.
Ymir's titan is piloted like Annie's and Eren's meat gundams. But hers is a chibi-meat gundam.