I disagree on the notion that CCBS has not innovated enough over time. Just compare these sets, with the SW ones, then with the Chima ones, then with the later HF stuff, and the 2.0. line. The innovation is there and apparent.
The system is fine, the primary fix needs to be around the presentation of any given line, specially original IPs by LEGO. When you put effort into making people want your products, then they will come and appreciate the building system more.
Technic wasnt loved right from the get go, it also needed a decade or two before it was widely accepted, the same goes with CCBS (though the reasons are different cause the goal of both styles are different, one mostly builds objects, the other mostly characters, so the approach to make the lines successful are different). The innovation is apparent, it just needs time, love, care, and attention to flourish.
CCBS is a fairly young system, a bit of half a decade old (Technic is 40 years old, System 60 or so years, massive time differences). It still has a lot of growing pains to go through, but where it is now, build wise its pretty nice, marketing focus is...meh.