Your best match might be someone else's best match also. So who gets to keep him?
Say you and person A get matching coefficient of 0.980. It's the best one you can get.
But person A's best matching coefficient is 0.985 with person B.
But person B's best matching coefficient is 0.990 with person C.
And assume second-best options for each of you have much lower MCs.
So who gets paired with whom? Or should we aim for the highest sum of all matching coefficients of all matched pair? That would result in many unhappy, poorly matched pairs I believe.
Of course we can aim for a high mean MC and a flat MC distribution, but that is only achievable if A LOT of people get matched at once. We can address that by matching people only once they reach a certain age once a year.