Oh woops, that totally is much later. That explains a bit of why I'm confused here.
But I digress:
https://wow.gamepedia.com/Jaina_Proudmoore#Landfall
If she acts towards neutral goals, she's neutral. She was almost 100% purely neutral up to MoP. She really wasn't an Alliance Hero at all up until the Purge. Prior to that, the worst thing she did was allow Theramore to be used by the Alliance - Which, yes, meant their military was landing there since Garrosh decided war with the Alliance was a main goal.
You still haven't proven anything you've said about the purge is true though. It's equally as muddled as you claim all the Horde stuff is supposed to be.