GMO said: Tis what happens when an antagonist is more a tool than an actual FF character. At least Squeenix cared to have you fight against her in XIII-2.
Now by "Tool" do you mean in the sense that he was a pawn to greater forces at work, or do you mean "Tool" as in the standard slang definition of the word?
"Tool," as in never given the chance to be an actual antagonist, despite face value, and just being killed off. Despite her being killed off so soon (inevitable as it may seem), so much could've been exposed or revealed about her involvement and I really believed there was. Same with Cid Raines. Basically, "We Hardly Knew Ye.