Oh ok, then maybe my toon is bugged not having crafted a sigil nor having one drop for me with them nasty Back-Stabbers…bugged in a sorta kinda GOOD way!!! 
Most Awesome NMD / NMV affixes. 
- PC General Discussion - Diablo IV Forums (blizzard.com)
Opposite of this post.
It isn’t removed but it’s mechanic reworked to be less deadly.