Shaman has never been a weak class. In fact it's always been one of the best. The ability to range,kite,heal are hard to over come for any class. The addition of totem has allowed shaman to burst down just about any class. Mix in quake and blind its border line comical.
People also base who is good and what's good from 1v1. Which here means very little. Anyone with knowledge can fight 1 person. Turns into a who crits more who dodges so on. Very little placement skills. Try fighting more than one to see where you stand. All that comes with gear. If you're lvl 20 and you make it hard as hell for people to kill you well then its time to lvl and gear up so you can dish the pain.
As far as kiting. Dead? I think not. Shaman is the best kiter all around. With blind totem and quake you can kite entire groups of people and kill them. Only thing that usually stops me is a root from a lvl15 druid. Druid is a good kiter but we're back to 1v1 here. They can't root someone and dmg them with another person around. Lock cant sustain the kite no heal one mistake you die.
Skills - blind is op, heal is op, totem is op, quake if used right is close to op, ancestral hand if used right is good. I never use LS but its decent. So you need a few more skills to be good or what? You get a shield and ball for extra dmg. You should be set.
You want to get good? Use a proper build join 5x5 arena hunt nadir solo get killed a whole lot and learn. Or amp really high and play with the big dogs.