I dot think shamanism will solve anything, if we lag like 5% behind the rest, shamanism would have to be buffed by huge number like 20% at the very least. And thats not going to happen, the entire reason why our spells hit for so low is because we have rng on top of rng stats in mastery and crit, where the variance per one spellcast is gigantic between no proc LB and double crit LB overload etc. Buffing spells might help in pve, but it wont happen because of pvp and QQers that were oneshotted by full proc burst from eleshaman once a month.
IMO, the crit is just broken for our spec and needs to be looked at. .