There is a post about this in the WoW Coomunity Council forum:
You won’t get an answer as to exactly why Blizz hammered a group, unless they decide to make a Blue about this specific issue. Hard to say one way or another if they will for this issue.
Perhaps, when playing, the best litmus test: is this reasonable game play I am doing? Part of that consideration is, how was this designed to be played? Too far outside the box carries risk.
Also, General is probably a better place for a discussion on this.
Good luck.