Sylvannasâs power was always " gauged " she was strong, but not " OP " we got a glimpse of her powers in the greymane vs sylvannas cinematic, as in sheâs stronger than him but not by a huge margin.
Only recently, we discovered her OP powers and it was directly explained as empowered by the jailor and she immediately left the horde, as in she wasnât an asset of the horde to use.
In the battle for lordaeron she took 1 tower down and a couple of soldiers, not decimate armies and nullify the enemies strongest trump card with a snap of her fingers.
When you compare the horde you should think of thrall pre cata, cairne, baine ( even though heâs alliance ) , volâjin, etc.
They are strong, but not anime level tornado and wisp wall creating with thanos snaps.
An overpowered character is only cool when portrayed in a unique way, with a defined weakness, the alliance characters have none.
Think Gaunterâoâdim in the witcher, or the elder vampire, or Madara in Naruto etc, they are overpowered characters, but each have a defined weakness and story.
Hell even the lich king which wasnât THAT powerful was portrayed to have defined weaknesses, ( not strong on holy grounds, has a human side holding him back, got a mental battle with nerâzhul, his dad and souls trying to escape the sword, his human heart that tirion destroyed )
While the alliance characters are just overpowered for the sake of being overpowered, no unique weakness no nothing, and not even a reasonable explanation to their powerups.
Compare malfurion to Illidan, one had to sacrifice things, use the fel and finally consumed gulâdanâs skull then worked under the demons themselves to become this powerful, while malfurion was " lel talented shando " if heâs angry he created tornados and stuff.