I disagree with the first point. In the first Rotation, you can use F3 > B3 > SC B4, in the second Rotation you can F3 >B3, let Enochan fall off and reactivate it after switching to AF3 again. Because of the F3 proc, the Rotation is longer, so there's even less CD on Enochian.
How it affects total dps is something we'll have to see.