Do not give in YoshiP. The difficulty of Dawntrail is perfect for normal content. People need to learn, not the mechanics, but that is OK to struggle in content, not the end of the world. The content needs to be engaging. Everything we had in the past was BORING. Terribly boring. This is also level 100, at some point people need to pay attention to mechanics.
Perfect balance: Mechanics easy to execute, but have to pay attention to what the boss is doing and react accordingly. There isn't even a dps check!