Nope Koch was trying to better his position the whole time and wasn't actually KOed during the blitz of GnP if you noticed Koch's movement. It just looked bad cuz of how his head reacted to the hits but you can see he was still "there" and trying to chance position thru the GnP. The ref saw it but had to eventually stop it since the kick and first hit on the ground might have had him out for a very brief split second and couldn't get out of the bad position. But it wasn't really that bad when you really look at Koch's body movement.