In my opinion the C-D road was so popular not because players wanted to get to Calais or Duisburg safely, rather because they wanted a challenge navigating through the chaos, overtaking slower drivers, trying to survive the whole road without damaging the truck etc. but now it is just a straight motorway like 95% of the ETS2 map.
Changing the road has ruined the fun aspect of driving from Calais to Duisburg or vice versa. People may argue that the old road was ‘too small for the amount of players who used it’ and it needed updating, but obviously it had the opposite effect as now half the road going towards Calais is stationary traffic…
There is still a chance it was just for April fools though, as the Skoda monster trucks were still in the game yesterday. If they are removed and the new road isn’t then we will know for certain.