That is a heal spec ability and sorcerer healers, if anything, are grossly underpowered compared to the tools they have to keep people alive and the amount of damage other classes/specs are capable of.
Do you also have any idea how the shield work? Once you cast a shield on someone, you cant cast it on them again for 20 seconds (17 with set bonus). It only mitigates the damage equal to approximately one heal as well.
Also, you cant spam force lightning to regain force as a heal spec sorcerer. In order for us to regain force, we typically have to break combat in seethe. We do have an ability to get a free consumption after an inervate, but it only returns slightly more force than what you spent to beging with using the inervate ...at the cost of a channel + a gcd.
Please, before you spew nonsense, at least have an understanding of what you are talking about.