No. She'd be far 'cooler' if she was a dude if you ask me.
The creepy/banshee/half-naked/demon-lady thing has never appealed to me. It's horrid and needs to be flushed out of the fantasy genre.
HOWEVER. That is my own opinion. I wouldn't be half surprised if you were right, OP. The majority of WoW players are a sucker for terribly predictable fantasy tack.