This title might seem to slightly contradict yesterday's title.
Yesterday's post is actually a few weeks old. Since then my guild has started doing hardmodes. They are a lot more challenging and interesting. Having to play more carefully makes it more fun, even when the mechanics are not majorly different. Such as on Marrowgar, which is essentially the same, just with more lag, thanks having so much more fire. Even still, it's more fun not falling asleep and standing in bone storm.
This raises the question: If Blizzard knows how to make these fights fun, why are the most easily accessed fights the less fun versions? It's almost like the old "most people don't see the end-game content" problem, except in this case they might not even realize what they're missing. I've said before that I didn't like the split of easymode and hardmode, with very little in the middle, but since actually seeing that hardmode (or some of it), I think there's an even worse problem of easy and boring vs. hard and interesting.
On the other hand, this might be inevitable. Interesting often means complex (not always, but it's not a terrible rule of thumb), which means that unless a mechanic is trivial, it will be harder. This does depend on the highly subjective and, in this post, undefined, meaning of interesting.