Well, i wouldn't want humanity to be represented as helpless, who just stands around impotently when it's not ferrying the devils and angels to their destination like some kind of taxi driver. She helps by being an informant but not much more. Hell, lady was human and represented humanity as "We can kick your ass if you mess with us". Granted she doesn't make it to the final fight, but that's because she's human. It would be the same if she was a human man.
It's not about what you want, since that is subjective.
The point is that Kat, whether you want her to or not, represents humanity in the game, or at the very least symbolic of it.
I don't see why that is a bad thing. Kat is the neutral force of the game, that favors non-lethal resolutions and tends to take the righteous side in things.
Like humanity, she is frail, but can hold her own. After all, she killed her demon foster father herself.
You could argue that Kat being a character that isn't about raw power and fighting is a refreshing take on women in the DMC/DmC series. In the original series, most of the women were fighters. While that is awesome, having some variety is nice.
Although, if the reason Kat wasn't a fighter solely because she's human, then that's really insulting. -_-
I don't think it was purely because of that, but because that really wouldn't have suited the direction it was going.
After all, we already have two professional fighters stealing the show, so why have another just to have one?
Also, don't take it as an insult! I doubt the developers would intend that, considering that they are human too...
...for all we know, anyway...
