I just did the "Darkside Caverns" in Deshaan solo as VR-3 and this zone should be a VR zone as I am doing the Cadwell's Silver quests in the Ebonheart Pact. The bosses had about a 16,000 health, but were too easy to kill. Every other NPC had health lower than 700 with the exception of a few that had a health about 1200.
With the exception of the final boss, the other ones were dealing very little damage, The whole dungeon seemed like it cloned the settings from a level 30 group dungeon zone.
Anyway I put in a bug report, but if you want the achievements, now is the time to get them, or if you are passing by the dungeon, you can confirm this post.