Succinct doesn't typically mean clutter-free, but hyper-efficient. This works for code, because it (is intended to be) composed of unambiguous semantic units. Regular language, on the other hand, is messy, vague, and requires more structure and context.

CC attempts to communicate in English the same way it does in code -- squeezing as much information into as few words as possible, and including justifications for everything, no matter how trivial. To do that, it coins terms and presupposes all of its context exists within the reader also.

So, the crux is: CC has no clue what is and isn't "necessary" for a human reader, and teaching it to understand that (if at all possible) is going to be very valuable...