Blizzard identified a bug with Battle for Azeroth dungeons scaling. A bug fix for the issue will be deployed with scheduled weekly maintenance on Tuesday.
(Source)
Along with the players who reported this, we found a bug causing enemies in Battle for Azeroth dungeons to scale well beyond their intended difficulty.
With scheduled realm maintenance on Tuesday, we will deploy a fix for the bug and the difficulty of the affected dungeons should become very similar to that of Chromie Time leveling dungeons.
To everyone who reported the state of BFA dungeons: thank you very much.
