Oh wait, so this isnt a bug but a "feature"?
I simply make the claim that there are enough jobs in ets2, so that anyone who wants could make a big bow around duisburg.
Only those who enjoy the mass presence of other players and the associated traffic jams, explicitly look for the route calais->dusiburg. Just as anyone who drives the death route on promods knows what they are getting into. I myself loved to start in düsseldorf and drive relaxed through duisburg and then on country roads to calais.
The real wrongdoers, the people who deliberately want to cause damage, do not disappear as a result of this change, but look for another place. The ones who are dissapearing are drivers like me, who liked cruising down duisburg for several years...
Just add an "i hate the multiplayer part this game" mode, for those people who like these changes
Edit: Wow my first post here since i bought ETS2 on Steam for ETS2MP in July 2014, sry that it had to be such a negative one...