User blog comment:DementedP/Isayama's take on Episode 23/@comment-7418318-20130915184302/@comment-179280-20130915215417

Sorry, but this kinda smells of hate?

Anyways, responding to that... it's obvious she will not stay inside the crystal forever. Either she comes out willingly or they find a way to get her out.

Also of note, Isayama said he LOVED the change, because those sketches he made were from when he was working on Chapter 31, but he didn't know how to implement them and later regretted not doing it. That's why he asked the anime director if they could do something about it and they did. Of course, I still don't like the change, but it was their decission.