Are you even following his progression? CC has been getting praise from all his coaches including the US National team for his improved play away from the puck. He's not a one trick pony. What he is however is small and thus he will always get extra criticism and be expected to do more.
CC is going to be a beast. I think his upside is higher than KK. We got lucky landing him for that very reason, size. But, he'll put up big points in the NHL, he's got the vision and scoring ability.