Looks like dispels might get nerfed sometime in the future "Our intent was to make dispels more expensive, but that hasn’t really toned them down as much as we wanted. Long-term, as with the interrupts, we do need to chill dispels out even more"
This was found in the elemental shamans ask the devs pvp.
Buffing UA dispel penality would help as many have suggested, if Blizzards tones down the dispels that would go a long way to help many classes locks spriest elemental shammies frost mages.
Hopefully we shall see the toning down of dispells or as blizz says chill dispels even more in patch 4.1