According to events in Howling Fjord that wasn't a globally accepted policy. There were vrykul couples who had to abandon their children or else they'd be slain. Also, a big theme among the vrykul culture is proving ones worth, which the humans have consistently done. Story-wise, I don't see how Horde has a greater claim on vrykul than Alliance does.
I'm not sure why more Hordies aren't on board with Kvaldir, who I've loved since I first saw them in Borean Tundra. Given that they're essentially undead vrykul they would fit perfectly as the counterpart while still offering all of the vrykul awesomeness.
Agreed! Also, frankly, Worgen & Goblins need their model revamp, especially the former if Greymane is going to be a story focus. I like the idea of Vrykul/Kvaldir because most of the work's been done already, but when it comes to new races please fix the old ones first. Sadly, I don't think Blizzard considers additional character options a good use of their resources. :\
That's been on my wish list for years. Unfortunately, Cataclysm seems to have all but wiped out centaurs.
Vrykul are so much more badass looking, especially the females. This is even more true after the model update where all the human females were given the same 'pleasant' Stepford face. Even just giving the Vrykul hairstyles to players would be a nice addition. As for the worgen, they were rushed badly. The males are okay, I guess, but the females have always looked terrible. I don't know how many people get "badass" from female worgen, but I sure don't. :P
My biggest complaint about Alliance these days is lack of or rapidly diminishing badassness, in all things, but that's another topic.