2.1 brings a (confirmed by Yoshi) change to how the servers handle positioning that should improve things. We'll know more once the patch hits.

What you're asking for is DBM from WoW. Which turned everything easy mode (people still failed a lot though, lol), especially when they came out with that visual marking addon that dropped markers on where you needed to go or where an AoE was going to land. Which I'm fairly sure got banned real quick, lol.
Also, what kind of progression Raider would turn off such a feature? Those kinds of folk take any edge they can get if it gives them the kill.

For me, part of the challenge is that reaction time. I play in Australia, and i can reliably dodge Weights and landslides, with only the odd miss here and there.
If you removed the anticipation of a special skill, you remove the required awareness of the fight, and turns it into little more than watching cool down bars and strafing left/right depending on the name of the skill coming.
Take DBM away from the WoW Raiders and they're hopeless even in farm fights they're supposed to know well, i don't want to see that happen here.