not the first time Blizzard has turned a blind eye I mean it was bad enough they hotfixed a raid encounter and indirectly interfered in an unofficial event when limit was ahead of method effectively robbing limit of the worlds first mythic azshara kill but now it seems not even the MDIs are off limits when it comes to this kind of issue
in fact I raised the same kind of concern weeks ago by saying how odd that Blizzard waits until the right moment to apply that hotfix nerf
http://us.forums.blizzard.com/en/wow/t/mythic-azshara-worlds-first-victory-is-tainted