You don't realize that invoking Galakrond is a tempo loss (5 mana 3/3? Hello?) and quest shaman is all about tempo. You lose before you can even play Galakrond
5 mana 3/3 and 2x 2/1 rush...not a tempo loss, man.
You think the hero power is bad? Okay then. I disagree. First of all the best thing about Galakrond is that you don't have to play him until you are ready. Just keep playing double invoke cards and getting 2-4 2/1s with rush with the quest reward. Then when you are ready you press your double battlecry hero power then play galakrond and get 4 8/8 rushers. Sure you lose your hero power but it's a move that is a closer if you need it.
I'd be surprised if you play the quest with Invoke.
I'll be honest. About half of my game played seem to be against Quest Galakrond Shaman.
I don't know if it's a problem yet - it's a simple deck to build and very good, so it's over represented by people who want to "just win baby."
If this is still the case in a week and a half, we may have a problem. But I suspect people will figure out how to start exploiting its weaknesses.
Invoke
5 mana 3/3 and 2x 2/1 rush...not a tempo loss, man.
I'd be surprised if you play the quest with Invoke.
What happens when you remove the good aggro decks from the meta when N'Zoth exists, I wonder?