Ok , I'm joking, I didn't craft any golden grizzlies, but all the same, I don't care much for this gratuitous, unmotivated change of artwork, and I'm curious of why it happened.
To be as blunt as I possibly can.
They changed the art because some people are to retarded to see that it's a bear and therefor a beast.
Less bluntly would be, Blizzard saw that it could cause trouble for those players who are mentally impaired with the whole blue ghostly appearance. Since it's a ghost does it not forfeit the beast tag since all beasts before are alive?
So they changed it to its current appearance to make it look more "beastly".
Does anyone else find it strange that the bear still has a ghostly blue 'aura' around it? The art does match the name and tags better, but they left some of the original blue art in the background- perhaps because changing the golden animation was too much work?