And Jaina/Kul Tiras as a whole has a whole “we are not kings/queens but we are also suppose to be equal them” deal that means Jaina might have just wanted to show respect to Varian. Also, I expect MoP(or at least the faction war and Varian’s eventual role) was already being planned.
Which we know is wrong to Erazmin because he gave up leadership claim to Gelbin.
Except you decided to look past what was done, and in absolute terms the Alliance has gotten more female characters, more instances of female characters having major lore. And general, just female characters actually being portrayed in a positive light.
As a side note: The pandarens are ruining the gender balance on the playable race page - #22 by Zerde-sargeras
Interestingly they made the Alliance pandaren character(in order to fix the gender imbalance I mentioned which was tilted male) female AND now make it so the gender balance is 7-5 and female/male on the Alliance and 5-7 female/male Horde side.