I have thought this through and have come to the following conclusions:
FC and/or the playerbase has referred to the NT profession as a "Glass Cannon"
Because of this description, FC have decided to make every new content avaible to the NT have stupid nerfs on them like -concealment and offensive/defensive focus and w/e
If you think about it, if a cannon was made of glass it would wtpwn itself whenever it fired something.
This makes sense in a horrible twisted way.
:<