That's idle speculation, you dumbass. The shit he was coming up with to explain something that ddin't make sense to him.
And the Horde characters are more interesting right now. Flynn, probably your main questing companion in Tiragarde Sound, is just kind of a silly scoundrel. Preach thinks he's basically a Disney character, and clearly sees Lady Ashvane as something akin to a Disney villain. He's not talking about Jaina or Anduin here. He's talking about the characters you meet in Kul Tiras. He feels characters like Zul, Rastakhan, Princess Talanji, the other Zanchuli Council members, and so on, are better.
So stop seeing Horde bias everywhere. It just seems like you're looking for a fight. You're the clickbait here.