I'd like to see this nerf mechanic reused in the future.
Everyone always complains about raids being 'too easy', even the hardmodes that they still havent cleared...
So why not push the raids out the door with normal mode being mathematically "difficult" to fully clear, and hardmodes theoretically impossible...
So then we could have a few weeks of true 'progression' while the buff/debuffs slowly bring the raid back to a more realistically feasible range, and then continue buffing it once or twice while the next content patch is out, but still on 'hardmode' til the buffs start stacking.
Those that dont like the grind/wipe of progression raiding can farm the hell out of the ezmode last raid, but those that demand a challenge can bash their heads against the wall of the bleeding edge current content and practice mechanics while the numbers get a little better.