The difference is still drastic between button mashing and not button mashing to the point of jerky animation cancels when it comes to DPS. I absolutely slaughter larger targets while running around when I make my character appear epileptic rather then Dodging around and making the skills flow together in what would be "natural" for a person to do if these abilities were real.
Animation cancelling is horrible to watch, unless the dps meter is what you are watching.