Cool detail I noticed in the Shadis yelling scene in ep 3. Spoilers ahead!!
When commander shadis is yelling at some of the kids, another guy walking past comments on the rite of passage he goes through with them, but only some of them. What’s interesting about this is two things. Firstly, Armin, despite being one of the “ones who witnessed the hell two years ago” is still one of the ones yelled at. This is a cool detail because imo it shows that his humanity and good nature is still there despite what he’s witnessed, whereas mikasa and eren are part of the group who have “been through that rite of passage.”
Secondly, the only other people other than eren and mikasa that are shown to be people who have “been through this rite of passage” are Ymir, Annie, bertholt, and Reiner, which with hindsight of their stories has cool commentary about their lives in Marley. They have their own traumatic pasts that impacts them. It’s also just a nice moment of irony because some of them were the ones who brought about the “hell from 2 years ago”.