...what?
You basically just said: "The first female protagonist in the series isn't bringing in anything new! They should have used the same characters they've used every time before!"
Explain to me how that makes sense.
Also explain to me how Shanoa isn't bringing anything new to the series. For one, she's a girl, which is a first for the series. Her emotions were absorbed into Dominus, so he's pretty unexpressive, another unusual thing in female game characters (especially compared to Charlotte). She also has an incredibly dark ending, which suited the series much better than the "Saturday morning cartoon" endings of Pork.
Lordy.