I loved how Nomura admitted to wanting to write her something more along Repliku's storyline, where because of the Memories she'd argue she was the real Sora-Nobody and fight Roxas because "there could be only one Sora-Nobody", but everyone in the staff insisted he kept her being a "good girl" to the very end XD so in a way the haters have a point in the sense she was designed to be sweet and adorable and perfect - but I say, what's the true harm in that aside from being forced to realize that they HAD to introduce a new character because they didn't have too much to do with the existing organization, and the members they COULD do anything with died in CoM