Problems when the meaning of playing games is more about rewards than to just have fun playing the game.
At least a questionable move from FS, because they know for sure it will cause the players who already have it and means a lot to them will be disappointed and angry.
But because it’s only a fraction of Players, maybe less than 1% it doesnt matter and
and that makes real gamers with dedication (up to having exploitet several Penances at launch) angry.
Everytime it happens it’s funny.
I grinded MC to get XY before Burning Crusade and now it’s worthless from 20 years back 
I feel sorry for the people who have it, i may need to look it up if i have it already now 