text: Certainly trunk is incorrect for all of these roads, there needs to be a distinction between the A1/A3 and the less important roads.
  It seems they were changed in this changeset: https://overpass-api.de/achavi/?changeset=39562682 - not sure why they were changed, as their previous classifications look good to me.
  Before reverting, suggest you leave a changeset comment, and/or message that user to see why they made the changes.
  