I think there were two main problems with it:
1. For me personally, it reminded me a lot of Pasha's showdance with Chelsee/things he did last year: Beyonce song, K's hairstyle, the dress,K's shadow dancing, which was similar to C&P's Samba last year.
2. It looked shaky in some of the lifts, and sometimes their hands didn't seem to connect at the right times,which usually causes mistakes to be made in terms of dance moves.