Achievement Mount names not corresponding - No stable Big enough

Why does the game have to be so lazy with having mounts that dont line up with what is listed. Like the No Stable Big enough achievement specifically states mount : Biting Frostshard Core. but its not you actually get Frostshard Infernal. so when you are looking for mount and cant find it and you have to look at threads hundreds of people ticket wow for this. Because you dont get an item and learn it it goes straight into your bag. then they say multiple achievements and mounts are like this? Go to the Forums and complain… but why should we have to? if a specific mount is actually listed on a achievement why should you have to wowhead or ticket to work out what the mount is called to find the mount? just Write the learnt mount correctly… Gawd you have one job.