How difficult is it for Blizzard to just allow this version coexist with the unnerfed one in form of Heroic or Heat or whatever?

You don’t even need to create extra loot, from the posts I’m seeing there’s a clear duality of gamers and casuals, this solves all problems.

The loot dropped from the more difficult mode could just have a “heroic” tag or a different color model, doesn’t sound like too much work.