Yea, I don't even bother anymore dropping that totem after the 1st one expires on my shaman, unless there's some downtime when the boss is unattackable or something, it's such a waste of a GCD.
Having it up is literally the #1 priority for enhance, due to the way it interacts with our Lava Lash. It might not be great for ele but it is very useful to another spec and I wouldn't call it useless/undertuned due to that. Also I'm dying inside at the resto shamans who think UE is useless.
Sorry? To stun large groups is useless? Maybe in Arena, but you can find a lot of uses in PvE. And an AoE-grip is... dunno. It's fun, it's effective, you get on peoples nerves during PvP displacing them all the time... every tank will be thankful for throwing the stuff right ontop of his head. But yeah, a situational PvP-talent might be situational... talents are choices, not "use me and numbers go boooom!". At least I believe this is the most fun way of using the current talent system.
Heroic Strike, though, does suck. It doesn't do anything, the damage is low and there's really no point in using it. I just have Cleave bound for hitting two targets when Ultimatum proccs. It does a little less than Heroic Strike, but whatever.