I doubt LL has any desire to purchase something that flopped. Yes, C&C was an optimized performance body with first of its kind features. But curvy is the trend now, and C&C is a slender body. Maybe if the body was based on the more curvy Hourglass (that some designers still support), it would have had some success.
I don’t think most SL users care about optimization. If they did, bodies that I have been told are “breaking the grid” wouldn’t be so popular. Even with BOM, bodies are still being made with alpha cuts.