While most of us here could probably agree CrossFit is not particularly good to optimize cycling performance I think most advocates do not do CrossFit for this purpose. I have some relatives that love CrossFit. He is a policeman. She is a dancer. Both like it for the general conditioning benefits they receive. He recently won a Texas Nat Guard contest for his area and he attributes most of that to his cross-fit training. I am sure some cyclists do it because they don't want to look like a cyclist.