The old system of providing braking action reports based on Mu readings although fallible (and yes there are incidents and accidents to pove it), is infinitely preferable to having very little, or worse no information at all. That might explain why crews are still asking for B/A reports. I cannot see how this problem can be addressed until the prickly issue of liabilty is resolved, and protection in place for those who provide the information. Particularly in the case of Mu readings, this is factual information. Slightly simplistic I know as braking action can be patchy, but still better that the system we have now.