According to this website, Goblins are 2% of the population, and Gnomes are 3%.
http://warcraftrealms.com/census.php It just seems stupid and a waste of time to add a recolor of a joke race that almost nobody plays. Most people like the normal humanoid models the best on both fractions. They (humans and elves) dont have weird squashed or stretched bodies, or stupid gimmicks like hooves, troll feet, goat legs, tusks and muzzles, torn clothes, or goofy proportions.
Just imagine if Gilbins and Mechanognomes are supposed to be the BIG HYPE of the next allied races. lmao.