Not sure if it is an exploit or "working as intended" but it definitely works.
One of the possibilities is in Zul'Gurub:
There are some Hoodoo-Piles and sometimes one of your Raid gets MindControlled after opening it. You can then put the Curse on him and have your fun when he's exploding a minute later
Guess it would also work when Jin'Do's Totems are MCing someone.