And regarding competitive, it depends how people view it. If you mean in a sensible raid where sensible cooldowns (this means rogues tricksing each other and no PI), gear and buffs are available to boost their dps to the max potential as possible of their class, then yes, DI is kind of required to make them competitive with other players in the raid that strife for it. In other words: DI is highly sought (and in a sense required) to allow a player to maximize the potential of their class in sensible margin of what is available. It will be a matter of opinion of the designers what their sense of competitive is, and for every player it will be different as well. For one person it can be an element where it wont be needed to be competitive, for others it will be. in my eyes I deem it as needed to make us competitive as it allows me to maximize the potential of my class in reasonable margins.