When a 3rd party makes money out of WoW products (IN game in this case) it is no problem, but when Blizzard adds mounts, pets or fluff items to its own shop it is blasphomy.
So these guys simply oppose because Blizzard now sells a mount themselves instead of the profiting 3rd party in the past 6 years...
Weirdos and it just proves how immature these Blizzard haters really are.
Oh look ! Blizzard is gaining money !