A stupid attempt at a trade off, there has never been moaning from the horde player base that gnomes are alliance only. You're not going to get helves because of blood elves , and trying to make even less races faction exclusive isn't a good thing. Roll a blood elf or be happy with Night elves, but the petty thinly veiled grabs at blood elves is beyond tiring, especially when people act like burning crusade was just released yesterday.
We're at the point where people are going the route of northem and actually trying to push headcanon as lore In an attempt to make their high elf demand have any semblance of sense in WoW's life time.