unexpected nil braking action would of course explain quite a bit...if so, if there was no warning, then we should credit the crew with keeping the plane on centerline through the adventure..
I recall one landing at KBUF where the runway was fine, but the captain ( I was f/o at the time...many years ago) took the highspeed and we were skating on ice...max reverse on the taxiway got us under control again...but PHYSICS IS PHYSICS.