People justifying blizzard are actually not thinking about it very well.
take ele shamans current OPness atm. if you nerfd lava burst and buffed another spell so the pve dmg was the same but LB burst was lowered it'd be fine and could be pushed out in a week. They havent even looked at ele dmg on ptr yet!
especially as LB got a buff of 25%!
they could do simple stuff too like echo talent applys a 50% dmg spell twice as often.