Very simple: Because their word means nothing, they have disappointed the community on every possible level before and they do not honor the game time of their customers anyway. On top of that, the game suffers of lack of character and race fantasy with too many significant items being locked away, which would foster the inGame cultures better and the lack of heritage weapons and armors shows, that they do not care enough for this, which is why we have these issues.
These things doesn’t mean anything to me as a RPer. They a distracting, offer no value and are just gameplay achievements. Better bring updated mounts, more race/class titles and weapons/transmog out, which isn’t available yet.
Another fresh topic about the lack of class and race fantasy. Again, they really are bad at this. Such a simple request and yet they sleep on it for almost a decade.
https://www.reddit.com/r/wow/comments/z2ycyt/16_years_later_and_we_still_cant_wear_beer/