User blog comment:Miskos3/Shingeki no Kyojin Episode 24: Mercy, Review/@comment-20382425-20130923120707/@comment-5462665-20130924041506

There's always the fact that Isayama personally is working alongside the Anime Director, and that these changes are probably ones he is either A) happy with or B) Made himself

Such as the scene with Annies laugh; That was Isayama that wanted that in there.