The biggest thing that doesn't make sense with all these changes. DPS OVERALL on all melee is being nerfed into oblivion, and mobs (Abyss / Spires / Turuj) Keep having their HP buffed (in some cases doubled) How is this seen as fair? You have broken the entire game at this point and have literally killed high end raiding for the most part.
4.3 taken as another example, when first created Bane damage (Humanoid) was available in various forms, and even though maybe the belts didn't exist, there was still stacking with items such as Dhuro / FG ear and others. The encounters HP was buffed, and certain phases were made more difficult and essentially, bringing a monk or a rogue in your group is a complete hindrance, no matter any way you stroke it. 3 Rangers and a bard, or any combinations of casters are far superior in any way to bringing a monk or a rogue, and this is not limited to this encounter. Rohk / Curator and any other encounter ON TEIR would benefit from this setup, and that just plain should not be the case. As well as what others are saying, you might as well can any extra rogues or monks and get more casters / rangers into your raid, because they have almost no utility and do far less DPS.
All in all, you should probably stop nerfing things unless you have a plan, because making encounters harder, and nerfing everyones DPS is not the answer.