see.. actually no such thing as this imba, thats imba. blizzard really made this game very well. (some minor patch fix ofc)

Huk already prove Protoss is strong (in his hand)
Fruit did the same.
and so who's next?

people QQ when they dont want to improve their skill. they relying on Blizzard to nerf it. instead of posting long QQ this imba, nerf this that, train harder. if not enuf, try again and again and again and again.
THERE'S NO LIMIT OF IMPROVEMENT.
there's no such thing as impossible.