It would be nice if the wpColorPicker supported the Iris options. I'd liek to be able to use its mode and controls options.
As Iris is developed by Automattic, why bother with all its options if they're not supported?
You could argue to just use Iris instead of wpColorPicker. But that flies in the face of the (very good) principle of having wpColorPicker.
wpColorPicker is set of UI controls wrapped around the underlying Iris color picker. We did things this way so that, if a better color picker comes along, we can more easily swap it out.
Ironic that the Iris demo page repeatedly shows the hue in the slider control, but wpColorPicker locks hue into the secondary selector area of the 2D selector. Which makes selecting and holding a color hue very finicky.
Please add to wpColorPicker's all of Iris' options - especially mode and controls.