Wait wait, no she isn’t. She is described as the ‘most powerful sorceress of her people’, so she is the most powerful -female- -Human- Mage. Not the most powerful mage on Azeroth. We have no idea how she stacks up against Khadgar, or Rommath or people like that. I mean she’s powerful, sure, and he has that nice plot armour, but we don’t know that she’s all that and a bag of chips…
Back on point;
I’m not sure there is bias, both sides suffer in different ways, The Horde starts off strong, it is in hyper aggressive mode, but pretty soon their story starts unravelling, then we get shown the Alliance as both this incredibly monolithic presence, and yet also this incredibly effective guerilla army, and then they waltz in and destroy the very -reason- for the Horde to be involved in the expansion. I mean this was supposedly about us gaining allies with big fleets, right, after our own were depleted?
Well…that didn’t work out well for the Horde, because apparently the Zandalari, with their history of naval power, never came up with any rudimentary safety regs and went “Oh, someone’s put a bomb in our ship, we best get rid of that” They lose a pretty iconic character, who has always been present, even if only by reputation (Rastakhan), and once again it seems to be tearing itself in two, first Saurfang, now Baine, It seems Lor’themar and Thalyssra are also going “Yeaaah, this has gone too far, we just need to figure out what to do about it” So basically a retread of SoO. Its very slanted in terms of story. Horde is getting more story, but the story they are getting is mostly them splintering, or having the reason for the expansion ripped away from them. We just -had- an Alliance expansion, in Legion, I don’t think we need another in BfA.
But then, this said…
The Alliance is getting the short end of the stick also, in different ways. Teldrassil and Undercity kind of offset each other, and the collateral damage to the Horde through Sylvanas’ actions kind of offsets that as well. But, they’re still being the reactive party, not proactive, which is kind of understandable, you want the Goodies to finish a fight, not start it. They take a spanking early on, but then Jaina turns up with her ridiculous magic flying ship (Gee where have we seen that before) and has to save the day… She basically destroys the credibility of Anduin, Genn and the Alliance characters at the Siege of Lordaeron. Anduin may be a raw youth, big on wisdom for his years, but inexperienced in leading troops, but Genn certainly isn’t, but oh no, in sails Jaina with her boat going ‘Pew Pew’. So they get some pretty weak writing, even whilst winning. They’re ahead of the game in terms of securing a new fleet, as they get to keep theirs, but there is still a lot of inconsistency about how. They also suffer from the eternal problem of Alliance plot writing, “How do we cause internal strife within the Good Guys, without making some of them Bad Guys?”.
So we don’t get that story on Alliance side, we don’t get the dichotomy of “Saurfang being right and Sylvanas being wrong” We don’t get the “Public arrest of a Horde leader by an increasingly unhinged Warchief”
No, we get “Tyrande wants action, Tyrande goes to do her stuff, but oh, her forces will still help the Alliance” “Genn wants action, Genn aids Tyrande, but oh, he will still help the Alliance” and then “Anduin is sorry he can’t help, but he would if he could”
So Alliance is suffering from a different kind of bad writing. Blizzard are too scared it seems, to introduce themes of dissent and unwarranted aggression in the Alliance, even when they disagree, they’re still all pals really, and that sort of writing can seem over simplistic and patronising when playing on Alliance.
The War Mode thing didn’t help, the first time one Faction has been deliberately favoured by Blizzard because of player actions leaves a sour taste, that’s not cool at all.
So I don’t think there is bias, both factions are getting a rough time of it, just for different reasons and in different ways.