Ada and Werner/Benedict's milestones have been removed. With the update that happened on Tuesday, Ada's two weekly bounties should now each drop a Black Armory armor piece, so you can still get them that way.
Wow ok cool, I must have missed this thinking they would still be blue. I just logged in on my Hunter and he no longer has Ada or Benedict/Werner as a milestone. This makes so much more sense. It was still broken BUT this is the fix for that I suppose. Oh thank you for pointing this out!