I also want to mention, that Rogue/Champion has been severely nerfed as well:
Changed Assassins Rage to increase main hand weapon damage instead of physical damage.
Before it was 20% physical damage (~30% stronger hits) now it is just 20% stronger hits. This is a nerf of about 8.3% in burst.
So it stands to reasoning to increase the 20% to 30% and of course the 12% to 18% for other Rogues assuming the intention is to only nerf offhand-based Rogues.