Er, if I'm right, there's a difference between power extras and enhancement extras. See, in the above example, Dazzle is a power extra, while ghost touch, area and multifire are enhancement extras. To use the power extra, you use the action it requires, and you can gain the benefit of the enhancement powers, but you can't use the base power at the same time. If you use the base power, you get the benefit of the enhancement extras, but you don't get to power extra. To get the power extra, you have to add the contingent enhancement extra (whenever the base power is used) on it. I'm not totally sure if that's it, but I think by the wording of Weapon, the energy blast extra, etc... is like that.
Edit-Charlotte is going to get 0wned by Jun Min.