With a hotfix that is now live to all realms, we just fixed an issue that caused non-boss creatures to inflict more damage than intended while the Fortified affix is active during Season 2.
This bug was new to Season 2 and specific to the Fortified affix.
It was sarcasm. Blizzard has improved some design aspects of the game over the last several years but every patch is a complete clown show now. Too cheap to hire enough people to actually review code.
Well, I’m gonna go out on a limb and assume most players never noticed it either. I certainly didn’t and am only learning that it was bugged as I read this post.