It's a trend they started with Skyrim. Two meaningful DLCs, and some fluff. I won't ever expect anything as good as Obsidian's continuous four-DLC story again. That masterpiece was one time only.
I really enjoyed the workshop mode, but I never would have been into it, had I known it would lead to lazy DLC with no real content. Cosmetic fluff that drains my painstakingly-acquired resources, with no story content? Sounds an awful lot like GTAO, to me. Expect TES VI to have its own workshop mode.
At this point, TESO has more meaningful DLC. Might be time for me to give that a shot, honestly, despite the lore rape.