OP is part of DC group @ dolmen near nikel, Haxus shows up, 1 Haxus member is CC'd into the center of the dolmen and can rez/heal rest of group.
Personally I'm impartial to it, maybe if ZOS fixed the age old bug of going through solid objects while CC animation is happening this wouldn't be an issue.
This happens to me for some reason. If I am farming dolmens. I will randomly arrive at one I cannot touch. My character just walks along the ground as if the Dolmen wasn't even there.
Sometimes the mobs and chest have the same effect, half sticking out of the Dolmen floor.
Not sure why it happens, or how to do it. Sometimes half my group can pass right through while the others can't.
It saved me from one gank of about 4 EP once haha.
The dolemns I notice it most on are: Bruma, Applewatch and Winters reach.