Probably because our criteria of clean is different. A clean replay for me is one that ends up with Uke having 0 points. You took 165 points during the hit. Even though that's a small amount, I like splits when they are absolutely flawless, because it's something so simple and bland.
It's totally understandable if you think different, but I usually ignore CnC due to the fact that it's a matter of opinion whether a replay is good or not.