It doesn't really take away from anything. I mean, the floral goobbue didn't do anything to the minstrel goobbue no matter how much the jerk Legacy players made it out to be. And noone cared that the 500 commendation reward was a gold pope-mobile... I mean reaper... Point is, the special mounts for preordering Heavensward will still be special, no matter how many flying mounts you have prior.