In The Snowmen, she played an inspiring character of Victorian time. Instead of turning her into multi-dimensional technobabble mystery herself, they could have taken her on the journey where she was the one who was mystified by the future.
Oh, I agree. Moffat seems to subscribe to RTD's (Wrong!) belief that only modern companions are interesting. I was mega excited for a Victorian companion and let out a big sigh when I realised where things were headed.
I'm sure Clara will be a good companion and less chavy than Rose and Donna but the idea of a new cultural perspective on adventures really seemed really interesting. Certainly more engaging than another timey-wimey mystery ala Amy and River.