Here is the link to actual publication (in german):
https://www.land.nrw/sites/default/files/asset/document/zwis...
https://www.land.nrw/sites/default/files/asset/document/zwis...
All statements made in the paper are marked with "vorläufig", which translates to preliminary.
Considering the gravity of the situation, I don't think it's bad to provide preliminary results, but that's probably highly debatable.