This timing issue has been a known problem for many years and the FIE (and BF in the Brit champs when we get to the finals) insist on the time-keeper pressing the start button even when there are only a few seconds left on the clock. It asks for human error. I have seen similar situations many times both internationally and at domestic events. At Opens if a referee is using a timekeeper they always grab hold of the controller when you get to the last few seconds, so why it cannot happen at these events. The German has to be given the win and the korean has to accept it as the point was within the time on the clock and you have to fence to the halt... Really harsh, but human error is the problem here which the rules do not cater for very well...