I'm not sure what you are trying to say.
Other developers took their chances by not censoring anything and their games were not put on the index, e.g. Resident Evil 5, Dead Space, Jericho. Those games are all very gory, so of course they are 18+ but that's fine and dandy to me.
Oh and guess what, games that are censored in Germany like Left 4 Dead or Red Orchestra? They are 18+ too. Censored or not, Killing Floor will end up 18+. Tripwire might just release the game as is.
What worries me is this, now that Tripwire started negotiating with the USK, the USK might ask them to censor not only gore but features like the chainsaw or ZED time.