User blog comment:Omega natsu2/Chapter 374: Revolution, Predictions./@comment-3424593-20140306044024/@comment-7418318-20140306152833

While I agree it's so popular that another season is practically guaranteed, the last two episodes did damage the anime's reputation a bit among the manga fans.

The vast majority of the anime was well adapted and the few filler-scenes they added fit in very well too, but in those two episodes they messed up key scenes quite a bit, resulting in an important point of Eren's development being undone.

And Levi's presence in the last episode, which was supposed to make him look cool, made him look clueless instead, when he "saved" someone from Eren only after Eren had already stopped attacking by himself. It felt like the animators were thinking along the lines of "Oh hey, people like the character, so let's hack him into the scene" without providing anything useful for Levy to do. He's just there for the sake of being there and shouldn't even be able to use 3DG due to his foot injury...

Oh there I go again... anyway if you want to read a more lengthly analysis/argument why those two episodes were actually kinda bad, just check the review blogs over on the Shingeji no Kyoujin wiki.