Trueish. Correct me if I'm wrong but wasn't c1 only on the MC last year? This year they're using it on a few more boards with a broader appeal. The MC fits a pretty specific rider. The new Emma and JL Classic look good and the Hot Knife fits well for those looking for a softer deck.
You are confusing C1 and C3. C1 was introduced last year for the La Niņa MC - and that is still the only Lib-Tech board with that camber profile. C3 is new this year on the Hot Knife, Jamie Lynn Classic, and the Emma Peel.