Board Thread:General Grimm Discussion/@comment-88.108.121.135-20150528110712/@comment-96.47.226.98-20150619134721

The moment Juliette got uber-powers was a pretty big red flag that she was either going to be killed off or she was going to turn into the season antagonist (think Willow from BTVS). It just doesn't work well for the storyline to have one of the good guys be that overpowered.

I think that was the reason also why Adalind had her powers removed. The writers probably wanted her to stick around as one of the good guys next season.