Well, the objective is to see if, by checking for Complex Specified Information (or an equivalent, Specified Complexity), we can establish that it is extremely improbable that this can have resulted from ordinary evolutionary processes. To see whether SC is there we must calculate the probability that an adaptation that substantial could arise by natural evolutionary processes. SC is defined as a condition that is there only if that probability is sufficiently small. How to calculate that probability? That was the problem SC (or CSI) was supposed to solve for us. To know A, we must calculate B, which is defined as requiring A.
Thus the SC or CSI part adds nothing: to know it is there we must have already solved the problem that SC or CSI was supposed to help us solve. But it sounds impressive to pose it in terms of CSI or SC.