Last few months pf MoP I invested into my Elemental Shaman, I even leveled all professions and was excited to play my Orc Lava throwing death machine...Sadly WoD is a sad, sad expansion for the PvP elemental
William Shatner is an institution and Blizzard you should be ashamed of what you did to this build!
Ele is not in a bad place right now. Especially after the recent hotfix to LvB. I don't get why you would say that... At least im still enjoying playing it.
As for your question, its a good way to roll damage during AoE phase. Not sure for single target rotation (at least don't use CL)
Ele is in a pretty bad situation raiding wise. The one boss that has an aoe portion, you can't sit still long enough to cast a CL and then an EQ before fire is tracking you or a spike is about to ram itself up your arse.