I've already talked about them here. I've said that being notified when the mount is removed beforehand as warning is not the same thing as a promise of exclusivity or a promise they won't reuse the skin. If they added a quest in tomorrow with this mount they won't have gone back on anything they have said from the quotes provided. It was going to be removed for 2.0, they then notified people they would take it out during 1.23a instead. Neither statement is really a promise to never have bring it back. If anything you have shown that they decided to lessen the amount of time they were going to give people initially, showing they have no problems changing their minds on the issue.