OTOH many realise that there is no reliable corelation between reported deceleartion measurement and ad hoc aircraft behaviour. So, for TKOF performance some only use type of deposit and depth. Sometimes the BA/FC is not reported at all in order not to provide false and liable assumtions to operators - which I understand is UK CAA stance now. I am standing by to be soon corrected on this one.
You are correct. The following document gives an idea of the reasons behind the decision.
Hope it helps..
http://www.stac.aviation-civile.gouv.fr/aoswg/Proposedamendfric_DP4.doc.