drkraft
I'm surprised no one has mentioned it yet but your best source of realtime information on FMC equipped aircraft during landing is Prog page 2 (Boeing types).
I may be misunderstanding you but I do know that too many pilots refer to the FMC/FMGS wind readouts on approach with regard to their company limits but any such limits are referenced to w/v on the surface (or pehaps more accuaretly 15 metres above the surface).
I always have one of the FMC's on that page during landing.It keeps me legal and keeps me from getting surprised
Or are you saying that you literally have you colleague looking at the FMC page at 50' agl when they should perhaps be closely monitoring other parameters
There is no doubt that the w/v from the FMC has got some value but given the huge variations that can occur between reported surface wind and winds aloft, I would suggest that it's real value is to give a clue to expected shears as you approach touchdown.